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Hosoya A, Nakamura H, Ninomiya T, Hoshi K, Yoshiba K, Yoshiba N, Takahashi M, Okabe T, Sahara N, Yamada H, Kasahara E, Ozawa H. Hard tissue formation in subcutaneously transplanted rat dental pulp. J Dent Res 2007; 86:469-74. [PMID: 17452570 DOI: 10.1177/154405910708600515] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
While dental pulp appears to be able to form mineralized matrices that do not always resemble dentin, the precise characteristics of the hard tissue and the mechanism of its induction remain unknown. Therefore, we evaluated hard tissue induced by transplantation of pulp into subcutaneous tissue. Seven days after transplantation, initial hard tissue was formed at the inner periphery of the pulp. After 14 days, this hard tissue expanded inwardly. Mineralized matrix was immunopositive for osteocalcin, osteopontin, and bone sialoprotein, but negative for dentin sialoprotein. Transplantation of GFP-labeled pulp into wild-type rats showed these formative cells to have been derived from the transplant. TEM observation revealed apatite crystals within necrotic cells and matrix vesicles at the initial stage of calcification. These results indicate that pulp cells possess the ability to form a bone- or cementum-like matrix. Calcification of the matrix may occur in necrotic cells and matrix vesicles, followed by collagenous calcification.
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Affiliation(s)
- A Hosoya
- Department of Oral Histology, Matsumoto Dental University, 1780 Gobara Hirooka, Shiojiri, Nagano 399-0781, Japan.
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Inafuku M, Toda T, Okabe T, Shinjo A, Iwasaki H, Oku H. Expression of Cell-Cycle-Regulating Genes in the Development of Atherosclerosis in Japanese Quail (Coturnix japonica). Poult Sci 2007; 86:1166-73. [PMID: 17495088 DOI: 10.1093/ps/86.6.1166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The levels of mRNA expression in regulatory genes that are involved in the pathological changes of aortic atherosclerotic and fibroblastic intimal thickening was investigated in Japanese quail. The quail were divided into a control diet group and an atherogenic diet group. The quail were euthanized at 2, 4, 8, and 12 wk after consuming either a control diet or an atherogenic diet. Thereafter, both histological and immunohistochemical studies and mRNA expression analysis of the cell-cycle-regulating genes in aortic atherosclerotic lesions were performed on selected ascending aortas and their large branches. In the atherogenic diet group, aortic lipid-containing intimal and atheromatous lesions were seen mainly at 8 and 12 wk, respectively. Semiquantitative reverse-transcription PCR was used to analyze the alterations of mRNA expression on the development of atherosclerotic lesions. Messenger RNA expression of the c-fos and c-src genes showed peak levels at 8 wk in the atherogenic diet group. However, no significant alteration of c-jun mRNA expression was noted during the entire experimental period. According to the progression of aortic atherosclerotic lesions, c-myc mRNA expression in the atherogenic diet group increased chronologically, and the highest level was observed at 12 wk. Alterations in mRNA expression of proliferating cell nuclear antigen and the p27 gene were similar to that of c-myc. The levels of c-myc, proliferating cell nuclear antigen, and p27 mRNA expression was significantly correlated with the degree of aortic atherosclerotic lesion development at 12 wk in our experiment.
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Affiliation(s)
- M Inafuku
- United Graduate School of Agricultural Sciences, Kagoshima University, Korimoto, 890-0065, Japan
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53
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Okabe T, Buch A, Javaid A, Steinberg D, Pinto Slottow T, Roy P, Hong Y, Smith K, Torguson R, Gevorkian N, Xue Z, Satler L, Kent K, Pichard A, Waksman R. The residual persistent plaque burden predicts the restenosis of drug-eluting stents. Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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54
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Okabe T, Mintz G, Buch A, Roy P, Hong Y, Smith K, Torguson R, Gevorkian N, Xue Z, Satler L, Kent K, Pichard A, Weissman N, Waksman R. The predictive factors of stent thrombosis in drug-eluting stent era. Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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55
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Pinto Slottow T, Steinberg D, Roy P, Javaid A, Buch A, Okabe T, Torguson R, Smith K, Xue Z, Pichard A, Satler L, Suddath W, Kent K, Waksman R. Does progression of coronary artery disease differ in patients with stable and acute coronary syndrome? Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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56
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Waksman R, Pakala R, Okabe T, Baffour R, Seabron R, Hellinga D, Chan R, Tio F, Wittchow E, Hartwig S, Waldmann KH, Harder C. Adjunct vascular brachytherapy further improves efficacy of absorbable metallic stents in porcine coronary arteries. Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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57
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Roy P, Raya V, Okabe T, Pinto Slottow T, Steinberg D, Smith K, Xue Z, Gevorkian N, Satler L, Kent K, Suddath W, Pichard A, Waksman R. Clinical correlates of restenosis following coronary implantation of drug-eluting stents. Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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58
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Buch A, Singh S, Roy P, Javaid A, Steinberg D, Pinto Slottow T, Okabe T, Smith K, George C, Xue Z, Gevorkian N, Torguson R, Fournadjieva J, Satler L, Kent K, Suddath W, Pichard A, Waksman R. Clinical outcomes after implantation of 2.5-mm-diameter sirolimus vs. 2.5-mm-diameter paclitaxel-eluting stents in unselected patients with coronary artery disease. Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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59
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Steinberg D, Mishra S, Javaid A, Pinto Slottow T, Buch A, Roy P, Okabe T, Smith K, Xue Z, Gevorkian N, Suddath W, Kent K, Satler L, Pichard A, Waksman R. Are drug-eluting stents superior to bare metal stents in large coronary arteries? Cardiovascular Revascularization Medicine 2007. [DOI: 10.1016/j.carrev.2007.03.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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60
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Kasuga E, Matsumoto T, Oana K, Shiohara M, Okabe T, Yamauchi K, Honda T, Ota H, Kawakami Y. Evaluation of BacT/Alert 3D SA bottles for accurate detection of Mycobacteremia with special reference to Mycobacterium abscessus. Eur J Med Res 2007; 12:43-6. [PMID: 17363357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
Bacteremia due to Mycobacterium abscessus, a rapid grower, belonging to the Runyon group IV, occurred in an inpatient with fever of unidentified origin in Shinshu University Hospital. To the best of our knowledge, this is the first documented case of M. abscessus bacteremia in Japan. The organism initially grew on Sheep blood agar plates after terminal-subculturing from the BacT/Alert SA aerobic blood culture bottles with no positive signal, and was subsequently identified as M. abscessus using 16S rRNA sequence analysis. We evaluated the BacT/Alert SA bottles for the detection of Mycobacterium species, with special reference to the rapid growers including M. abscessus by seeding experiments and obtained the following findings: 1) The BacT/Alert system shows the positive sign when the bacterial cell counts reach around 10(6) to 10(7) CFU/ml. 2) The System requires around 6 to 7 days of incubation to obtain a sufficient bacterial growth for the positive signal. 3) The System may result in false negative under the 5-day-culture method recommended by American Society for Microbiology in cases of using automated blood culture systems. 4) So-called the blind- or terminal-subcultures from the bottles are inevitable to perform for precluding the false negative cases.
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Affiliation(s)
- E Kasuga
- Division of Clinical Microbiology, Department of Biomedical Laboratory Sciences, School of Health Sciences, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
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61
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Abstract
We assessed the biological response to several novel titanium alloys that have promising physical properties for biomedical applications. Four commercial titanium alloys [Super-TIX(R) 800, Super-TIX(R) 51AF, TIMETAL(R) 21SRx, and Ti-6Al-4V (ASTM grade 5)] and three experimental titanium alloys [Ti-13Cr-3Cu, Ti-1.5Si and Ti-1.5Si-5Cu] were tested. Specimens (n = 6; 5.0 x 5.0 x 3.0 mm(3)) were cast in a centrifugal casting machine using a MgO-based investment and polished to 600 grit, removing 250 mum from each surface. Commercially pure titanium (CP Ti: ASTM grade 2) and Teflon (polytetrafluoroethylene) were used as positive controls. The specimens were cleaned and disinfected, and then each cleaned specimen was placed in direct contact with Balb/c 3T3 fibroblasts for 72 h. The cytotoxicity [succinic dehydrogenase (SDH) activity] of the extracts was assessed using the MTT method. Cytotoxicity of the metals tested was not statistically different compared to the CP Ti and Teflon controls (p > 0.05). These novel titanium alloys pose cytotoxic risks no greater than many other commonly used alloys, including commercially pure titanium. The promising short-term biocompatibility of these Ti alloys is probably due to their excellent corrosion resistance under static conditions, even in biological environments.
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Affiliation(s)
- M Koike
- Department of Biomaterials Science, Baylor College of Dentistry, Texas A&M Health Science Center, Dallas, Texas, USA.
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Ikado K, Abe K, Abe K, Adachi I, Aihara H, Akai K, Akemoto M, Anipko D, Arinstein K, Aulchenko V, Aushev T, Aziz T, Bakich AM, Balagura V, Barbero M, Bay A, Bedny I, Belous K, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chen A, Chen WT, Choi Y, Cole S, Dalseno J, Danilov M, Dash M, Eidelman S, Epifanov D, Flanagan J, Fratina S, Furukawa K, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha H, Haba J, Hara K, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Iida N, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kamitani T, Kang JH, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim HO, Kinoshita K, Koiso H, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee J, Lesiak T, Limosani A, Lin SW, Liventsev D, Marlow D, Matsumoto T, Matyja A, McOnie S, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Nagamine T, Nakamura I, Nakamura TT, Nakano E, Nakao M, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Park CW, Park H, Pestotnik R, Piilonen LE, Poluektov A, Rozanska M, Sakai Y, Schietinger T, Schneider O, Schwanda C, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shidara T, Shwartz B, Sidorov V, Sokolov A, Somov A, Stanic S, Staric M, Stoeck H, Sumisawa K, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yoshida M, Yusa Y, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Evidence of the purely leptonic decay B- --> tau- nu(tau). Phys Rev Lett 2006; 97:251802. [PMID: 17280341 DOI: 10.1103/physrevlett.97.251802] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2006] [Revised: 10/18/2006] [Indexed: 05/13/2023]
Abstract
We present the first evidence of the decay B- --> tau- nu(tau), using 414 fb(-1) of data collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. Events are tagged by fully reconstructing one of the B mesons in hadronic modes. We detect the signal with a significance of 3.5 standard deviations including systematics and measure the branching fraction to be B(B- --> tau- nu(tau)) = (1.79(-0.49) +0.56(stat)(-0.51) +0.46(syst)) x 10(-4). This implies that fB = 0.229(-0.031) +0.036(stat)(-0.037) +0.034(syst) GeV and is the first direct measurement of this quantity.
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63
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Gabyshev N, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bakich AM, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fratina S, Gershon T, Gokhroo G, Golob B, Gorisek A, Hara T, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kim SK, Kim SM, Kinoshita K, Korpar S, Krokovny P, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lesiak T, Lin SW, Mandl F, Matsumoto T, Mikami Y, Mitaroff W, Miyake H, Miyata H, Mizuk R, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Palka H, Park CW, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schwartz AJ, Senyo K, Seuster R, Sevior ME, Shibuya H, Sidorov V, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CH, Wang MZ, Xie QL, Yabsley BD, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yang H, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Study of decay mechanisms in B--->Lambdac+ppi- decays and observation of low-mass structure in the Lambdac+p system. Phys Rev Lett 2006; 97:242001. [PMID: 17280269 DOI: 10.1103/physrevlett.97.242001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Indexed: 05/13/2023]
Abstract
Using a sample of 152 x 10(6) BB pairs accumulated with the Belle detector at the KEKB e+e- collider, we study the decay mechanism of three-body charmed decay B- --> Lambdac+ ppi-. The intermediate two-body decay B--->Sigmac (2455)0 p is observed for the first time with a branching fraction of (3.7 +/- 0.7 +/- 0.4 +/- 1.0) x 10(-5) and a statistical significance of 8.4sigma. We also observe a low-mass enhancement in the (Lambdac+p) system, which can be parametrized as a Breit-Wigner function with a mass of (3.35(-0.02)(+0.01) +/-0.02) GeV/c2 and a width of (0.07(-0.03)(+0.04) +/-0.04) GeV/c2. We measure its branching fraction to be (3.9(-0.7)(+0.8) +/- 0.4 +/- 1.0) x 10(-5) with a statistical significance of 6.2sigma. The errors are statistical, systematic, and that of the Lambdac+-->pK- pi+ decay branching fraction.
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Affiliation(s)
- N Gabyshev
- Budker Institute of Nuclear Physics, Novosibirsk
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64
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Gabyshev N, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Balagura V, Barberio E, Bartel W, Bay A, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chen A, Chen WT, Cheon BG, Chistov R, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Ikado K, Imoto A, Inami K, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kawasaki T, Khan HR, Kichimi H, Kim SM, Korpar S, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lesiak T, Lin SW, Liventsev D, Majumder G, Matsumoto T, Mitaroff W, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Nakano E, Nakao M, Natkaniec Z, Nishida S, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Palka H, Park CW, Park KS, Pestotnik R, Piilonen LE, Sakai Y, Sato N, Satoyama N, Schietinger T, Schneider O, Schwanda C, Seidl R, Senyo K, Sevior ME, Shapkin M, Shibuya H, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe Y, Won E, Xie QL, Yamaguchi A, Yamauchi M, Ying J, Zhang ZP. Observation of B+ --> Lambda c+ Lambda c- K+ and B0 --> Lambda c+ Lambda c- K0 decays. Phys Rev Lett 2006; 97:202003. [PMID: 17155677 DOI: 10.1103/physrevlett.97.202003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Indexed: 05/12/2023]
Abstract
We report the first measurements of the doubly charmed baryonic B decays B --> Lambda c+ Lambda c- K. The B+ --> Lambda c+ Lambda c- K+ decay is observed with a branching fraction of (6.5(-0.9)(+1.0)+/-1.1+/-3.4)x10(-4) and a statistical significance of 15.4sigma. The B0 --> Lambda c+ Lambda c- K0 decay is observed with a branching fraction of (7.9(-2.3)(+2.9)+/-1.2+/-4.1)x10(-4) and a statistical significance of 6.6sigma. The branching fraction errors are statistical, systematic, and the error resulting from the uncertainty of the Lambda c+ --> pK- pi+ decay branching fraction. The analysis is based on 357 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider.
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Affiliation(s)
- N Gabyshev
- Budker Institute of Nuclear Physics, Novosibirsk
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Hirano A, Shimizu T, Watanabe O, Kinoshita J, Okabe T, Kimura K, Kamimura M, Domoto K, Aiba M, Ogawa K. 322 POSTER EC followed by docetaxei as primary systemic chemotherapy in locally advanced breast cancer. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70757-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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66
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Chistov R, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Aulchenko V, Aushev T, Bakich AM, Balagura V, Barberio E, Bay A, Bedny I, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Gabyshev N, Garmash A, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha H, Haba J, Hara T, Hayasaka K, Hayashii H, Hazumi M, Heffernan D, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee J, Lesiak T, Lin SW, Liventsev D, Mandl F, Marlow D, Matsumoto T, Matyja A, McOnie S, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Nagamine T, Nakano E, Nakao M, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Pakhlov P, Pakhlova G, Palka H, Park H, Park KS, Pestotnik R, Piilonen LE, Sakai Y, Schietinger T, Schneider O, Schwartz AJ, Seidl R, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Sidorov V, Singh JB, Sokolov A, Somov A, Soni N, Stanic S, Staric M, Stoeck H, Sumiyoshi T, Suzuki S, Takasaki F, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tikhomirov I, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Won E, Wu CH, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Zhang LM, Zhang ZP. Observation of new states decaying into Lambda(c)(+)Kappa(-)pi(+) and Lambda(c)(+)Kappa(0)/(s)pi(-). Phys Rev Lett 2006; 97:162001. [PMID: 17155385 DOI: 10.1103/physrevlett.97.162001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Indexed: 05/12/2023]
Abstract
We report the first observation of two charmed strange baryons that decay into Lambda(c)(+)Kappa(-)pi(+). The broader of the two states is measured to have a mass of 2978.5+/-2.1+/-2.0 MeV/c2 and a width of 43.5+/-7.5+/-7.0 MeV/c2. The mass and width of the narrow state are measured to be 3076.7+/-0.9+/-0.5 MeV/c;{2} and 6.2+/-1.2+/-0.8 MeV/c2, respectively. We also perform a search for the isospin partner states that decay into Lambda(c)(+)Kappa(0)/(s)pi(-) and observe a significant signal at the mass of 3082.8+/-1.8+/-1.5 MeV/c2. The data used for this analysis were accumulated at or near the Upsilon(4S) resonance, using the Belle detector at the e+ e- asymmetric-energy collider KEKB. The integrated luminosity of the data sample used is 461.5 fb(-1).
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Affiliation(s)
- R Chistov
- Institute for Theoretical and Experimental Physics, Moscow, Russia
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Gokhroo G, Majumder G, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Aushev T, Aziz T, Bakich AM, Balagura V, Banerjee S, Belous K, Bitenc U, Bizjak I, Blyth S, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Eidelman S, Fratina S, Gershon T, Go A, Golob B, Gorisek A, Ha H, Haba J, Hayasaka K, Hazumi M, Heffernan D, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kawai H, Kawasaki T, Kichimi H, Kim HO, Kim YJ, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kwon YJ, Lange JS, Leder G, Lesiak T, Lin SW, Liventsev D, Mandl F, Matsumoto T, McOnie S, Mitaroff W, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Nagamine T, Nagasaka Y, Nakao M, Nishida S, Nitoh O, Noguchi S, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Pestotnik R, Piilonen LE, Sakai Y, Sarangi TR, Schietinger T, Schneider O, Seidl R, Senyo K, Shapkin M, Shibuya H, Sidorov V, Singh JB, Sokolov A, Somov A, Soni N, Stanic S, Staric M, Stoeck H, Sugiyama A, Sumiyoshi T, Takasaki F, Tanaka M, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Usov Y, Varner G, Villa S, Wang CH, Wang MZ, Watanabe Y, Won E, Wu CH, Yamaguchi A, Yamashita Y, Yamauchi M, Zhang CC, Zhang ZP, Zhilich V. Observation of a near-threshold D(0)D[over](0)pi(0) enhancement in B-->D(0)D[over](0)pi(0)Kappa decay. Phys Rev Lett 2006; 97:162002. [PMID: 17155386 DOI: 10.1103/physrevlett.97.162002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2006] [Indexed: 05/12/2023]
Abstract
We report the first observation of a near-threshold enhancement in the D(0)D[over](0)pi(0) system from B-->D(0)D[over](0)pi(0)Kappa decays using a 414 fb(-1) data sample collected at the Upsilon(4S) resonance. The enhancement peaks at a mass M=3875.2+/-0.7(+0.3)/(-1.6) +/-0.8 MeV/c2 and the branching fraction for events in the peak is B(B-->D(0)D[over](0)pi(0)Kappa)=(1.22+/-0.31(+0.23)/(-0.30))x10(-4). The data were collected with the Belle detector at the KEKB energy-asymmetric e+ e- collider.
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Affiliation(s)
- G Gokhroo
- Tata Institute of Fundamental Research, Bombay, India
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68
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Wu CH, Wang MZ, Abe K, Adachi I, Aihara H, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Balagura V, Bay A, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Browder TE, Chao Y, Chen A, Chen WT, Cheon BG, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Eidelman S, Gabyshev N, Gershon T, Go A, Gokhroo G, Gorisek A, Ha H, Haba J, Hayasaka K, Hayashii H, Hazumi M, Heffernan D, Hokuue T, Hou S, Hou WS, Hsiung YB, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kim YJ, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee J, Lee YJ, Lesiak T, Lin SW, Liventsev D, Majumder G, Mandl F, Matsumoto T, Matyja A, McOnie S, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mori T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Pakhlov P, Palka H, Park H, Park KS, Pestotnik R, Piilonen LE, Sakai Y, Schietinger T, Schneider O, Schwartz AJ, Seidl R, Sevior ME, Shapkin M, Shibuya H, Sidorov V, Sokolov A, Somov A, Soni N, Stanic S, Staric M, Stoeck H, Sumiyoshi T, Takasaki F, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Usov Y, Varner G, Wang CC, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamaguchi A, Yamashita Y, Zhang LM, Zhang ZP. Study of J/psi-->pp[over],LambdaLambda[over] and observation of eta(c)-->LambdaLambda[over] at Belle. Phys Rev Lett 2006; 97:162003. [PMID: 17155387 DOI: 10.1103/physrevlett.97.162003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2006] [Indexed: 05/12/2023]
Abstract
We study the baryonic charmonium decays of B mesons B+-->etacK+ and B+-->J/psiK+, where the etac and J/psi subsequently decay into a pp[over] or LambdaLambda[over] pair. We measure the J/psi-->pp[over] and LambdaLambda[over] anisotropy parameters alphaB=-0.60+/-0.13+/-0.14 (pp[over]), -0.44+/-0.51+/-0.31 (LambdaLambda[over ]) and compare to results from e;{+}e;{-}-->J/psi formation experiments. We also report the first observation of etac-->LambdaLambda[over]. The measured branching fraction is B(etac-->LambdaLambda[over ])=(0.87(+0.24)/(-0.21)(stat)(+0.09/-0.14) (syst)+/-0.27(PDG))x10-3. This study is based on a 357 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider.
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Affiliation(s)
- C-H Wu
- Department of Physics, National Taiwan University, Taipei, Taiwan
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69
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Krokovny P, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Arinstein K, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Balagura V, Barberio E, Bay A, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Chen A, Chen WT, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Garmash A, Gershon T, Go A, Gorisek A, Ha H, Hayasaka K, Hayashii H, Hazumi M, Heffernan D, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikado K, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim SM, Kinoshita K, Korpar S, Krizan P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Lee J, Lesiak T, Li J, Lin SW, Majumder G, Matsumoto T, McOnie S, Mitaroff W, Miyabayashi K, Miyazaki Y, Mori T, Nakamura I, Nakao M, Nishida S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Ozaki H, Pakhlov P, Park CW, Park H, Peak LS, Pestotnik R, Piilonen LE, Poluektov A, Rozanska M, Sakai Y, Sarangi TR, Sato N, Satoyama N, Schietinger T, Schneider O, Senyo K, Shibuya H, Shwartz B, Singh JB, Sokolov A, Somov A, Soni N, Stamen R, Staric M, Stoeck H, Sumisawa K, Tajima O, Takasaki F, Tamai K, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Urquijo P, Ushiroda Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Zhang LM, Zhang ZP, Zhilich V. Measurement of the quark mixing parameter cos2phi1 using time-dependent Dalitz analysis of B0 -->D[KS(0)pi + pi-]h0. Phys Rev Lett 2006; 97:081801. [PMID: 17026290 DOI: 10.1103/physrevlett.97.081801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2006] [Indexed: 05/12/2023]
Abstract
We present a measurement of the angle phi1 of the Cabibbo-Kobayashi-Maskawa unitarity triangle using a time-dependent Dalitz analysis of D-->KS(0)pi + pi- decays produced in neutral B meson decay to a neutral D meson and a light meson (B0-->D*h0). The method allows a direct extraction of 2phi1 and, therefore, helps to resolve the ambiguity between 2phi1 and pi-2phi1 in the measurement of sin2phi1. We obtain sin2phi1= 0.78 +/- 0.44 +/- 0.22 and cos2varphi1 = 1.87(-0.53-0.32)(+0.40 + 0.22). The sign of cos2phi1 is determined to be positive at 98.3% C.L.
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Affiliation(s)
- P Krokovny
- High Energy Accelerator Research Organization (KEK), Tsukuba
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70
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Schümann J, Wang CH, Abe K, Adachi I, Aihara H, Anipko D, Arinstein K, Asano Y, Aushev T, Bakich AM, Balagura V, Barberio E, Barbero M, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen WT, Cheon BG, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha HC, Haba J, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kinoshita K, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Lee J, Lesiak T, Limosani A, Liventsev D, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Mori T, Nagamine T, Nakamura I, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sakai Y, Sarangi TR, Sato N, Schietinger T, Schneider O, Schwanda C, Seidl R, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Sidorov V, Sokolov A, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Usov Y, Varner G, Varvell KE, Villa S, Wang CC, Wang MZ, Watanabe Y, Won E, Xie QL, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang CC, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Evidence for B-->eta'pi and improved measurements for B-->eta'K. Phys Rev Lett 2006; 97:061802. [PMID: 17026158 DOI: 10.1103/physrevlett.97.061802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2006] [Indexed: 05/12/2023]
Abstract
We report evidence for the exclusive two-body charmless hadronic B meson decay B-->eta'pi, and improved measurements of B-->eta'K. The results are obtained from a data sample of 386x10(6) BB pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure B(B+-->eta'pi+)=[1.76(-0.62)(+0.67)(stat)(-0.14)(+0.15)(syst)]x10(-6) and B(B0-->eta'pi0)=[2.79(-0.96)(+1.02)(stat)(-0.34)(+0.25)(syst)]x10(-6). We also find the ratio of B(B+-->eta'K+)/B(B0-->eta'K0)=1.17+/-0.08(stat)+/-0.03(syst) and measure the direct CP asymmetries for the charged modes.
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Widhalm L, Abe K, Abe K, Adachi I, Aihara H, Arinstein K, Asano Y, Aushev T, Bakich AM, Balagura V, Barberio E, Barbero M, Bay A, Bedny I, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chen A, Chen WT, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Ha H, Haba J, Hara T, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Ikado K, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kakuno H, Kang JH, Kapusta P, Kataoka SU, Kawai H, Kawasaki T, Khan HR, Kim HJ, Kim HO, Kinoshita K, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kwon YJ, Lange JS, Leder G, Lee J, Lesiak T, Li J, Limosani A, Lin SW, Majumder G, Mandl F, Matsumoto T, Matyja A, McOnie S, Mitaroff W, Miyata H, Miyazaki Y, Mohapatra D, Nakamura I, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Pakhlov P, Park CW, Peak LS, Pestotnik R, Piilonen LE, Sakai Y, Sato N, Satoyama N, Sayeed K, Schietinger T, Schneider O, Schwanda C, Schwartz AJ, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Somov A, Stamen R, Stanic S, Staric M, Stoeck H, Suzuki SY, Takasaki F, Tamai K, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Zhang LM, Zhang ZP, Zürcher D. Measurement of D0-->pilnu(Klnu) form factors and absolute branching fractions. Phys Rev Lett 2006; 97:061804. [PMID: 17026160 DOI: 10.1103/physrevlett.97.061804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2006] [Revised: 07/12/2006] [Indexed: 05/12/2023]
Abstract
Using a 282 fb-1 data sample collected by the Belle experiment at the KEKB e+e- collider, we study D0 decays to K-l+nu and pi-l+nu final states. The D0 flavor and momentum are tagged through a full reconstruction of the recoiling charm meson and additional mesons from fragmentation. The reconstruction method provides very good resolution in neutrino momentum and in q2=(pl+pnu)2. Normalizing to the total number of D0 tags, we measure the absolute branching fractions to be B(D0-->Klnu)=(3.45+/-0.07stat+/-0.20syst)% and B(D0-->pilnu)=(0.255+/-0.019stat+/-0.016syst)% and the semileptonic form factors (within the modified pole model) f+K(0)=0.695+/-0.007stat+/-0.022syst and f+pi(0)=0.624+/-0.020stat+/-0.030syst.
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Affiliation(s)
- L Widhalm
- Institute of High Energy Physics, Vienna, Austria
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Garmash A, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aushev T, Aziz T, Bahinipati S, Bakich AM, Barbero M, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha HC, Hara T, Hasegawa Y, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Lee SE, Lesiak T, Limosani A, Lin SW, Liventsev D, Mandl F, Marlow D, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Nagamine T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Park CW, Park H, Park KS, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sakai Y, Satoyama N, Schietinger T, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Seidl R, Sevior ME, Shibuya H, Shwartz B, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Suzuki SY, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CH, Wang MZ, Watanabe Y, Won E, Xie QL, Yamaguchi A, Yamauchi M, Yang H, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Evidence for large direct CP violation in B+/- --> rho(770)0K+/- from analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decays. Phys Rev Lett 2006; 96:251803. [PMID: 16907296 DOI: 10.1103/physrevlett.96.251803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Indexed: 05/11/2023]
Abstract
We report results on a Dalitz analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decay including searches for direct CP violation. We report the first observation of the decay B+/- --> f2(1270)K+/- with a statistical significance above 6sigma. We also observe first evidence for large direct CP violation in the B+/- --> rho(770)0K+/- channel. The results are obtained with a data sample that contains 386 10(6) BB pairs collected at the Y(4s) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
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Affiliation(s)
- A Garmash
- Princeton University, Princeton, New Jersey 08544, USA
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73
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Ishikawa A, Abe K, Adachi I, Aihara H, Anipko D, Asano Y, Aushev T, Bakich AM, Balagura V, Barbero M, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen A, Cheon BG, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Golob B, Gorisek A, Ha H, Haba J, Hara T, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikado K, Inami K, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Kulasiri R, Kumar R, Kuo CC, Kwon YJ, Lee J, Lee SE, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, Majumder G, Mandl F, Matsumoto T, Matyja A, McOnie S, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Nagamine T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Park CW, Pestotnik R, Piilonen LE, Rozanska M, Sakai Y, Sato N, Satoyama N, Schietinger T, Schneider O, Schwanda C, Schwartz AJ, Seidl R, Senyo K, Sevior ME, Shapkin M, Shibuya H, Somov A, Soni N, Stamen R, Stanic S, Staric M, Stoeck H, Sumisawa K, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsukamoto T, Uehara S, Uno S, Urquijo P, Ushiroda Y, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang J, Zhang LM, Zhang ZP. Measurement of forward-backward asymmetry and Wilson coefficients in B --> K*l+l-. Phys Rev Lett 2006; 96:251801. [PMID: 16907294 DOI: 10.1103/physrevlett.96.251801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2006] [Indexed: 05/11/2023]
Abstract
We report the first measurement of the forward-backward asymmetry and the ratios of Wilson coefficients and in A9/A7 and A10/A7 in B --> K*l+l-, where l represents an electron or a muon. We find evidence for the forward-backward asymmetry with a significance of 3.4sigma. The results are obtained from a data sample containing 386 x 10(6) BB pairs that were collected on the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
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Affiliation(s)
- A Ishikawa
- Department of Physics, University of Tokyo, Tokyo
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74
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Seidl R, Hasuko K, Abe K, Adachi I, Aihara H, Anipko D, Asano Y, Aushev T, Bakich AM, Balagura V, Barberio E, Bartel W, Bay A, Bitenc U, Bizjak I, Blyth S, Bozek A, Bracko M, Browder TE, Chang P, Chen A, Cheon BG, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Dragic J, Eidelman S, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Grosse Perdekamp M, Ha HC, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Lee J, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mori T, Nakamura I, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa A, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Sakai Y, Sato N, Satoyama N, Schietinger T, Schneider O, Schümann J, Senyo K, Sevior ME, Shapkin M, Shibuya H, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Takasaki F, Tamai K, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Uno S, Urquijo P, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Measurement of azimuthal asymmetries in inclusive production of hadron pairs in e(+)e(-) annihilation at Belle. Phys Rev Lett 2006; 96:232002. [PMID: 16803372 DOI: 10.1103/physrevlett.96.232002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2006] [Indexed: 05/10/2023]
Abstract
The Collins effect connects transverse quark spin with a measurable azimuthal dependence in the yield of hadronic fragments around the quark's momentum vector. Using two different reconstruction methods, we find evidence of statistically significant azimuthal asymmetries for charged pion pairs in e(+)e(-) annihilation at a center-of-mass energy of 10.52 GeV, which can be attributed to a transverse polarization of the primordial quarks. The measurement was performed using a sample of 79 x 10(6) hadronic events collected with the Belle detector.
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Affiliation(s)
- R Seidl
- RIKEN BNL Research Center, Upton, New York 11973, USA
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75
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Mohapatra D, Nakao M, Nishida S, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Arinstein K, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Balagura V, Barbero M, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Golob B, Gorisek A, Ha HC, Haba J, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kataoka SU, Katayama N, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee J, Lesiak T, Limosani A, Lin SW, Liventsev D, Majumder G, Mandl F, Marlow D, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Mori T, Nakano E, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CW, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Poluektov A, Ronga FJ, Rozanska M, Sakai Y, Sarangi TR, Sato N, Schietinger T, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Seidl R, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Sidorov V, Sokolov A, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Usov Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Wicht J, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Observation of b-->dgamma and determination of /Vtd/Vts/. Phys Rev Lett 2006; 96:221601. [PMID: 16803300 DOI: 10.1103/physrevlett.96.221601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2006] [Indexed: 05/10/2023]
Abstract
We report the observation of the flavor-changing neutral current process b-->dgamma using a sample of 386 x 106 B meson pairs accumulated by the Belle detector at the KEKB e+e- collider. We measure branching fractions for the exclusive modes B--->rho-gamma, B0rho0gamma, and B0omegagamma. Assuming that these three modes are related by isospin, we find B(B-->(rho,gamma)gamma)=[Formula: See Text] with a significance of 5.1sigma. This result is used to determine the ratio of Cabibbo-Kobayashi-Maskawa matrix elements /Vtd/Vts/ to be [Formula: See Text].
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Affiliation(s)
- D Mohapatra
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA
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76
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Somov A, Schwartz AJ, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Arinstein K, Asano Y, Aulchenko V, Aushev T, Aziz T, Bahinipati S, Bakich AM, Balagura V, Bay A, Bedny I, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Gabyshev N, Garmash A, Gershon T, Go A, Gokhroo G, Golob B, Hara K, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikado K, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kapusta P, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kuo CC, Kusaka A, Kuzmin A, Kwon YJ, Leder G, Lesiak T, Li J, Limosani A, Lin SW, Macnaughton J, Mandl F, Marlow D, Matsumoto T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mohapatra D, Nagasaka Y, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Pestotnik R, Piilonen LE, Poluektov A, Sakai Y, Sarangi TR, Sato N, Schietinger T, Schneider O, Schwanda C, Seidl R, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Sidorov V, Sokolov A, Soni N, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Varner G, Villa S, Wang CH, Wang MZ, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamauchi M, Ying J, Zhang LM, Zhang ZP, Zhilich V. Measurement of the branching fraction, polarization, and asymmetry for decays, and determination of the Cabibbo-Kobayashi-Maskawa phase. Phys Rev Lett 2006; 96:171801. [PMID: 16712287 DOI: 10.1103/physrevlett.96.171801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2006] [Indexed: 05/09/2023]
Abstract
We have measured the branching fraction , longitudinal polarization fraction f(L), and CP asymmetry coefficients A and S for B(0) --> rho(+) rho(-) decays with the Belle detector at the KEKB e(+) e(-) collider using 253 Fb(-1) of data. We obtain B = [22.8 +/- 3.8(stat)(+2.3)(-2.6)(syst)] x 10(-6), f(L) = 0.941 (+0.034)(-0.040)(stat) +/- 0.030(syst). A = 0.00 +/- 0.30(stat) +/- 0.09(syst) and S = 0.08 +/- 0.09(syst). These values are used to constrain the Cabibbo-Kobayashi-Maskawa phase ; the solution consistent with the standard model is phi(2) = (88 +/- 17) degrees or 59 degrees < phi(2) < 115 degrees at 90% C.L.
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Affiliation(s)
- A Somov
- University of Cincinnati, Ohio 45221, USA
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Chen G, Nomura M, Morinaga H, Matsubara E, Okabe T, Goto K, Yanase T, Zheng H, Lu J, Nawata H. Modulation of Androgen Receptor Transactivation by FoxH1. A Newly Identified Androgen Receptor Corepressor. J Urol 2006. [DOI: 10.1016/s0022-5347(06)00428-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- G. Chen
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - M. Nomura
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - H. Morinaga
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - E. Matsubara
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - T. Okabe
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - K. Goto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - T. Yanase
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - H. Zheng
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - J. Lu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
| | - H. Nawata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan
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Zhang LM, Zhang ZP, Li J, Abe K, Abe K, Adachi I, Aihara H, Anipko D, Arinstein K, Asano Y, Aushev T, Bahinipati S, Bakich AM, Balagura V, Barbero M, Bay A, Bedny I, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha HC, Haba J, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikado K, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kapusta P, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee J, Lesiak T, Lin SW, Liventsev D, Mandl F, Matsumoto T, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mohapatra D, Mori T, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Park CW, Park H, Pestotnik R, Piilonen LE, Sakai Y, Sato N, Satoyama N, Schietinger T, Schneider O, Schwanda C, Schwartz AJ, Seidl R, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Singh JB, Sokolov A, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Usov Y, Varner G, Villa S, Wang CC, Wang CH, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamauchi M, Ying J, Yuan Y, Zhang CC, Zhang J, Zhilich V, Zürcher D. Improved constraints on D0-D0 mixing in D0 --> K+ pi- decays from the Belle detector. Phys Rev Lett 2006; 96:151801. [PMID: 16712147 DOI: 10.1103/physrevlett.96.151801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Indexed: 05/09/2023]
Abstract
We report the results of a search for D0-D0 mixing in D0 --> K+ pi- decays based on 400 fb(-1) of data accumulated by the Belle detector at KEKB. Both assuming CP conservation and allowing for CP violation, we fit the decay-time distribution for the mixing parameters x and y, as well as for the parameter R(D), the ratio of doubly Cabibbo-suppressed decays to Cabibbo-favored decays. The 95% confidence level region in the (x'2,y') plane is obtained using a frequentist method. Assuming CP conservation, we find x'2 < 0.72 x 10(-3) and -9.9 x 10(-3) < y' < 6.8 x 10(-3) at the 95% confidence level; these are the most stringent constraints on the mixing parameters to date. The no-mixing point (0,0) has a confidence level of 3.9%. Assuming no mixing, we measure R(D) = (0.377 +/- 0.008 +/- 0.005)%.
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Affiliation(s)
- L M Zhang
- University of Science and Technology of China, Hefei
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Ohwada S, Kawate S, Hamada K, Yamada T, Sunose Y, Tsutsumi H, Tago K, Okabe T. Perioperative real-time monitoring of indocyanine green clearance by pulse spectrophotometry predicts remnant liver functional reserve in resection of hepatocellular carcinoma. Br J Surg 2006; 93:339-46. [PMID: 16498606 DOI: 10.1002/bjs.5258] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND There is no standard method for predicting remnant liver functional reserve after hepatectomy or for monitoring it in real time. METHODS Indocyanine green (ICG) clearance (K) was measured non-invasively and instantaneously using pulse spectrophotometry before surgery, during inflow occlusion and after hepatectomy in 75 patients who underwent anatomical liver resection for hepatocellular carcinoma (HCC). RESULTS Eight patients (11 per cent) suffered liver failure and one (1 per cent) died in hospital. An estimated remnant K value of 0.090 per min was the cut-off value for liver failure. In a logistic regression model, the estimated remnant K (0.090 per min; P = 0.022) and age (65 years; P = 0.025) were significant predictors of postoperative liver failure. There was a correlation between the estimated and measured post-hepatectomy K, and between the inflow occlusion K and measured post-hepatectomy K (P < 0.001). The cut-off value of less than 0.090 per min for the estimated remnant K resulted in 88 per cent sensitivity and 82 per cent specificity for predicting liver failure. CONCLUSION Perioperative real-time monitoring of ICG-K is useful for evaluating the remnant liver functional reserve before, during and after liver resection for HCC. The estimated remnant K is a significant predictor of liver failure.
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Affiliation(s)
- S Ohwada
- Department of Surgery, Graduate School of Medicine, Gunma University, 3-39-15 Showa-Machi, Maebashi 371-8511, Japan.
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80
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Uehara S, Abe K, Abe K, Adachi I, Aihara H, Arinstein K, Asano Y, Aulchenko V, Aushev T, Bakich AM, Balagura V, Barberio E, Bedny I, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chang MC, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Dragic J, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Gorisek A, Ha HC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hoshi Y, Hou S, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim SM, Korpar S, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyata H, Miyazaki Y, Mizuk R, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Pakhlov P, Park CW, Park H, Pestotnik R, Piilonen LE, Poluektov A, Sakai Y, Sato N, Satoyama N, Schietinger T, Schneider O, Senyo K, Sevior ME, Shapkin M, Shibuya H, Shwartz B, Sidorov V, Singh JB, Sokolov A, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Tian XC, Trabelsi K, Tsukamoto T, Uglov T, Ueno K, Uno S, Urquijo P, Usov Y, Varner G, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamauchi M, Ying J, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zhilich V. Observation of a chi(c2)' candidate in gamma gamma --> DD production at belle. Phys Rev Lett 2006; 96:082003. [PMID: 16606172 DOI: 10.1103/physrevlett.96.082003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2005] [Indexed: 05/08/2023]
Abstract
We report on a search for new resonant states in the process gamma gamma --> DD. A candidate C-even charmonium state is observed in the vicinity of 3.93 GeV/c2. The production rate and the angular distribution in the gamma gamma center-of-mass frame suggest that this state is the previously unobserved chi(c2)', the 2(3)P2 charmonium state.
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Affiliation(s)
- S Uehara
- High Energy Accelerator Research Organization (KEK), Tsukuba
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Cai Z, Koike M, Sato H, Brezner M, Guo Q, Komatsu M, Okuno O, Okabe T. Erratum to “Electrochemical characterization of cast Ti–Hf binary alloys” [Acta Biomater. 1 (2005) 353–356]. Acta Biomater 2006. [DOI: 10.1016/j.actbio.2005.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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82
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Bizjak I, Abe K, Abe K, Aihara H, Asano Y, Bahinipati S, Bakich AM, Ban Y, Barberio E, Barbero M, Bay A, Bitenc U, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chao Y, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dong LY, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hara T, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Nagamine T, Nagasaka Y, Nakamura I, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Pakhlov P, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schönmeier P, Schwanda C, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe Y, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Determination of /Vub/ from measurements of the inclusive charmless semileptonic partial rates of B mesons using full reconstruction tags. Phys Rev Lett 2005; 95:241801. [PMID: 16384368 DOI: 10.1103/physrevlett.95.241801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2005] [Indexed: 05/05/2023]
Abstract
We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element /Vub/, based on 253 fb(-1) of data collected by the Belle detector at the KEKB e+ e- asymmetric collider. Events are tagged by fully reconstructing one of the B mesons, produced in pairs from Gamma(4S). The signal for b --> u semileptonic decay is distinguished from the b --> c background using the hadronic mass Mx, the leptonic invariant mass squared q2 and the variable P+ [triple bond] Ex - /px/. The results are obtained for events with p(l)* > or = 1 GeV/c, in three kinematic regions (1) Mx < 1.7 GeV/c2, (2) Mx < 1.7 GeV/c2 combined with q2 > 8 GeV2/c2, and by (3) P+ < 0.66 GeV/c. The matrix element /Vub/ is found to be (4.09 +/- 0.19 +/- 0.20(+0.14) -0.15 +/- 0.18) x 10(-3), where the errors are statistical, systematic including Monte Carlo modeling, theoretical, and from shape function parameter determination, respectively.
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Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bakich AM, Balagura V, Banerjee S, Barberio E, Barbero M, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Enari Y, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Haba J, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikado K, Imoto A, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim JH, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kuo CC, Kuzmin A, Kwon YJ, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Majumder G, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mohapatra D, Moloney GR, Nagasaka Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sakai Y, Sato N, Satoyama N, Sayeed K, Schietinger T, Schneider O, Schwartz AJ, Sevior ME, Shibuya H, Sidorov V, Somov A, Soni N, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Varner G, Wang CH, Wang MZ, Watanabe Y, Won E, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Zang SL, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Measurements of B decays to two kaons. Phys Rev Lett 2005; 95:231802. [PMID: 16384296 DOI: 10.1103/physrevlett.95.231802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2005] [Indexed: 05/05/2023]
Abstract
We report measurements of B meson decays to two kaons using 253 fb(-1) of data collected with the Belle detector at the KEKB energy-asymmetric e+ e- collider. We find evidence for signals in B+ --> K0 K+ and B0 --> K0 K0 with significances of 3.0sigma and 3.5sigma, respectively. (Charge-conjugate modes are included.) The corresponding branching fractions are measured to be [symbol: see text](B+ --> K0 K+) = (1.0 +/- 0.4 +/- 0.1) x 10(-6) and [symbol: see text](B0 --> K0 K0) = (0.8 +/- 0.3 +/- 0.1) x 10(-6). These decay modes are examples of hadronic bd transitions. No signal is observed in the decay B0 --> K+ K-, and we set an upper limit of 3.7 x 10(-7) at 90% confidence level.
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Affiliation(s)
- K Abe
- High Energy Accelerator Research Organization (KEK), Tsukuba
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84
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Tian XC, Ban Y, Abe K, Abe K, Aihara H, Arinstein K, Asano Y, Aulchenko V, Aushev T, Bakich AM, Banerjee S, Barberio E, Barbero M, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Dong LY, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hara T, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Ikado K, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakano E, Nakazawa H, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Palka H, Park CW, Park H, Pestotnik R, Piilonen LE, Sakai Y, Sato N, Satoyama N, Sayeed K, Schietinger T, Schneider O, Schwanda C, Schwartz AJ, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Soni N, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yuan Y, Zhang CC, Zhang LM, Zhang ZP. Measurement of the wrong-sign decays D0 --> K+ pi- pi0 and D0 --> K+ pi- pi+ pi-, and search for CP violation. Phys Rev Lett 2005; 95:231801. [PMID: 16384295 DOI: 10.1103/physrevlett.95.231801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2005] [Indexed: 05/05/2023]
Abstract
Using 281 fb-1 of data from the Belle experiment recorded at or near the (4S) resonance, we have measured the rates of the "wrong-sign" decays D0 --> K+ pi- pi0 and D0 --> K+ pi- pi+ pi- relative to those of the Cabibbo-favored decays D0 --> K- pi+ pi0 and D0 --> K- pi+ pi+ pi-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D0 mixing; the latter has not yet been observed. We obtain R(WS)(K pi pi0) = [0.229 +/- 0.015(stat)(+0.013)(-0.009)(syst)]% and R(WS)(K3pi) = [0.320 +/- 0.018(stat)(+0.018)(0.013)(syst)]%. The CP asymmetries are measured to be -0.006 +/- 0.053 and -0.018 +/- 0.044 for the K+ pi- pi0 and K+ pi- pi+ pi- final states, respectively.
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85
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Sakamoto T, Kato H, Okabe T, Ohya T, Iesato H, Yokomori T, Haga SS. A large inflammatory fibroid polyp of the colon treated by endoclip-assisted endoscopic polypectomy: A case report. Dig Liver Dis 2005; 37:968-72. [PMID: 16243012 DOI: 10.1016/j.dld.2005.03.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2005] [Accepted: 03/10/2005] [Indexed: 12/11/2022]
Abstract
Inflammatory fibroid polyp is a rare benign polypoid lesion of the gastrointestinal tract. Histologically, inflammatory fibroid polyp is characterised by an admixture of numerous small vessels, fibroblasts and oedematous connective tissue, accompanied by marked inflammatory infiltration by eosinophils. A 40-year-old man visited our hospital for the purpose of colorectal screening due to a positive faecal occult blood test. A pedunculated and reddish polyp was found endoscopically in the ascending colon. The polyp was large but was resected endoscopically without any problems. Histologically, the abnormal tissue of the polyp was located in the submucosal and mucosal layer. Proliferation of spindle cells and infiltration of inflammatory cells, such as plasma cells and eosinophils, were observed. Immunohistochemically, the spindle cells were positive for CD34, which was localised in the cytoplasm. These cells were also positive for S100 protein but were negative for c-kit and muscle markers. These findings are compatible with the histological diagnosis of inflammatory fibroid polyp. The surgical margin of the polyp was free of the tumour. Inflammatory fibroid polyp is more commonly found in the stomach or small intestine, and rarely in the colon, and therefore our case is a rare example of large and pedunculated colonic inflammatory fibroid polyp, which was treated successfully by endoscopic polypectomy.
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Affiliation(s)
- T Sakamoto
- Department of Clinical Laboratory, Tokyo Women's Medical University Daini Hospital, 2-1-10 Nishi-Ogu, Tokyo 116-8567, Japan.
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Zhang J, Abe K, Adachi I, Aihara H, Arinstein K, Asano Y, Aushev T, Aziz T, Bahinipati S, Bakich AM, Barberio E, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Brodzicka J, Browder TE, Chang P, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Eidelman S, Fang F, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Golob B, Gorisek A, Hara T, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Imoto A, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Kang JH, Kang JS, Kataoka SU, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Korpar S, Krokovny P, Kuo CC, Kwon YJ, Leder G, Lesiak T, Li J, Limosani A, Lin SW, MacNaughton J, Mandl F, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Moloney GR, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Park CW, Peak LS, Pestotnik R, Piilonen LE, Sagawa H, Sakai Y, Sarangi TR, Schietinger T, Schneider O, Schwartz AJ, Sevior ME, Shibuya H, Somov A, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tanaka M, Teramoto Y, Tian XC, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yang H, Ying J, Zhang LM, Zhang ZP, Zontar D. Measurements of the branching fraction and polarization in B+ --> rho+ K*0 decays. Phys Rev Lett 2005; 95:141801. [PMID: 16241643 DOI: 10.1103/physrevlett.95.141801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2005] [Indexed: 05/05/2023]
Abstract
We present the results of a study of the charmless vector-vector decay B+ --> rho+ K*0, based on 253 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We obtain the branching fraction B(B+ --> rho+ K*0) = [8.9 +/- 1.7(stat) +/- 1.2(syst)] x 10(-6). We also perform a helicity analysis of the rho and K* vector mesons, and obtain the longitudinal polarization fraction f(L)(B+ --> rho+ K*0) = 0.43 +/- 0.11(stat)(-0.02)(+0.05) (syst).
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Affiliation(s)
- J Zhang
- High Energy Accelerator Research Organization (KEK), Tsukuba
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87
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Abe K, Adachi I, Aihara H, Arinstein K, Asano Y, Aushev T, Bakich AM, Ban Y, Barberio E, Barbero M, Bay A, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Dash M, Dong LY, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kakuno H, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kibayashi A, Kichimi H, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar S, Kuo CC, Kusaka A, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, MacNaughton J, Majumder G, Mandl F, Marlow D, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohapatra D, Murakami A, Nagamine T, Nagasaka Y, Nakamura I, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Ronga FJ, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schönmeier P, Schümann J, Schwartz AJ, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Ushiroda Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Improved evidence for direct CP violation in B0-->pi+pi- decays and model-independent constraints on phi2. Phys Rev Lett 2005; 95:101801. [PMID: 16196917 DOI: 10.1103/physrevlett.95.101801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2005] [Indexed: 05/04/2023]
Abstract
We present a new measurement of the time-dependent CP-violating parameters in B(0)--> pi(+)pi(-) decays with 275 x 10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider operating at the Gamma(4S) resonance. We find 666 +/- 43 B(0) --> pi(+)pi(-) events and measure the CP-violating parameters: S(pipi) = -0.67 +/- 0.16(stat) +/- 0.06(syst) and A(pipi) = +0.56 +/- 0.12(stat) +/- 0.06(syst). We find evidence for large direct CP violation with a significance greater than 4 standard deviations for any S(pipi) value. Using isospin relations, we obtain 95.4% confidence intervals for the Cabibbo-Kobayashi-Maskawa quark-mixing matrix angle phi(2) of 0 degree < phiv(2) < 19 degrees and 71 degrees < phi(2) < 180 degrees.
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Affiliation(s)
- K Abe
- High Energy Accelerator Research Organization (KEK), Tsukuba
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88
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Itoh R, Onuki Y, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aushev T, Bakich AM, Ban Y, Barberio E, Bay A, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Dash M, Dong LY, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hara K, Hara T, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar S, Kuo CC, Kusaka A, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Majumder G, Mandl F, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohapatra D, Nagamine T, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Poluektov A, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schönmeier P, Schümann J, Schwartz AJ, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Urquijo P, Ushiroda Y, Varner G, Varvell KE, Wang CC, Wang CH, Watanabe Y, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Studies of CP violation in B-->J/PsiK* decays. Phys Rev Lett 2005; 95:091601. [PMID: 16197207 DOI: 10.1103/physrevlett.95.091601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2005] [Revised: 07/13/2005] [Indexed: 05/04/2023]
Abstract
CP violation in B-->J/PsiK* decays is studied using an angular analysis in a data sample of 253 fb(-1) recorded with the Belle detector at the KEKB e(+)e(-) collider. The flavor separated measurements of the decay amplitudes indicate no evidence for direct CP violation. T-odd CP violation is studied using the asymmetries in triple product correlations, and the results are consistent with the standard model null predictions. The time-dependent angular analysis gives the following values of CP-violating parameters: sin(2phi(1) = 0.24 +/- 0.31 +/- 0.05 and cos(2phi(1)=0.56 +/- 0.79 +/- 0.11.
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Affiliation(s)
- R Itoh
- High Energy Accelerator Research Organization (KEK), Tsukuba, Japan
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89
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Nakamura N, Okabe T, Takahashi T. Crystal structure of monosubstituted ferrocene derivatives. Acta Crystallogr A 2005. [DOI: 10.1107/s010876730508339x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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90
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Sumisawa K, Ushiroda Y, Hazumi M, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bakich AM, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hara K, Hara T, Hayashii H, Higuchi T, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kuo CC, Kusaka A, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lesiak T, Lin SW, Mandl F, Marlow D, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Park CW, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sagawa H, Sakai Y, Sarangi TR, Sato N, Schietinger T, Schneider O, Seuster R, Sevior ME, Shibuya H, Sidorov V, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Xie QL, Yabsley BD, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yang H, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Measurement of time-dependent CP-violating asymmetries in B0 --> K(s)0K(s)0K(s)0 decay. Phys Rev Lett 2005; 95:061801. [PMID: 16090938 DOI: 10.1103/physrevlett.95.061801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2005] [Indexed: 05/03/2023]
Abstract
We present a measurement of CP-violation parameters in the B0 --> K(s)0K(s)0K(s)0 decay based on a sample of 275 x 10(6) BB pairs collected at the upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson is fully reconstructed in the decay B0 --> K(s)0K(s)0K(s)0, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distributions of the proper-time interval between the two B decays: S = +1.26 +/- 0.68(stat) +/- 0.20(syst) and [symbol: see text] = +0.54 +/- 0.34(stat) +/- 0.09(syst).
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91
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Lee YJ, Wang MZ, Abe K, Abe K, Aihara H, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hayasaka K, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Mizuk R, Moloney GR, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Root N, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schümann J, Senyo K, Sevior ME, Shibata T, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe M, Xie QL, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Ying J, Zhang CC, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Observation of B+ --> plambdagamma. Phys Rev Lett 2005; 95:061802. [PMID: 16090939 DOI: 10.1103/physrevlett.95.061802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2005] [Indexed: 05/03/2023]
Abstract
We report the first observation of the radiative hyperonic B decay B+ --> plambdagamma, using a 140 fb(-1) data sample recorded on upsilom(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is [symbol: see text](B+ --> plambdagamma) = (2.16(+0.58)(-0.53) +/- 0.20) x 10(-6). We examine its M(plambda) distribution and observe a peak near threshold. This feature is expected by the short-distance b --> sgamma transition. A search for B+ --> pepsilon0gamma yields no significant signal, and we set a 90% confidence-level upper limit on the branching fraction of [symbol: see textB+ --> pepsilon0gamma <4.6 x 10(-6).
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Affiliation(s)
- Y-J Lee
- Department of Physics, National Taiwan University, Taipei
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92
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Majumder G, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Banerjee S, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Haba J, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Kang JH, Kang JS, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SK, Kim SM, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Macnaughton J, Mandl F, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohapatra D, Moloney GR, Nagamine T, Nagasaka Y, Nakamura I, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schönmeier P, Schümann J, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Xie QL, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Ying J, Zhang CC, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Evidence for B0 --> D+ D- and observation of B- --> D0D- and B- -->D0D*- decays. Phys Rev Lett 2005; 95:041803. [PMID: 16090797 DOI: 10.1103/physrevlett.95.041803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2005] [Indexed: 05/03/2023]
Abstract
We report evidence for B(0) --> D(0)D(-) and the first observation of the decay modes B(-) --> D(0)D(-) and B(-) --> D(0)D(*-) based on a sample of 152 x 10(6) BB events collected by the Belle detector at KEKB. The branching fractions for B(0) --> D(+) D(-), B--->D(0)D(-), and B--> D(0)D(*-) are found to be (1.91 +/- 0.51 +/- 0.30) x10(-4), (4.83 +/- 0.78 +/- 0.58) x 10(-4), and (4.57 +/- 0.71 +/- 0.56) x 10(-4), respectively. Charge asymmetries in the B---> D(0)D(-) and B(-) --> D(0)D(*-) channels are consistent with zero.
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Affiliation(s)
- G Majumder
- Tata Institute of Fundamental Research, Bombay
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93
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Ushiroda Y, Sumisawa K, Hazumi M, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aulchenko V, Aushev T, Bakich AM, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Choi SK, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Eidelman S, Fang F, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Gorisek A, Haba J, Hara K, Hastings NC, Hayasaka K, Hayashii H, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SM, Kinoshita K, Krizan P, Krokovny P, Kumar S, Kuo CC, Kusaka A, Kuzmin A, Kwon YJ, Leder G, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, Mandl F, Matsumoto T, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mohapatra D, Moloney GR, Nagamine T, Nakano E, Nakao M, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schwartz AJ, Senyo K, Sevior ME, Shibata T, Shibuya H, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe M, Watanabe Y, Xie QL, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Ying J, Zhang J, Zhang LM, Zhang ZP, Zontar D. Measurement of the time-dependent CP-violating asymmetry in B(0)-->K(0)(S)pi(0)gamma decays. Phys Rev Lett 2005; 94:231601. [PMID: 16090457 DOI: 10.1103/physrevlett.94.231601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2005] [Indexed: 05/03/2023]
Abstract
We present a new measurement of CP-violation parameters in B(0)-->K(0)(S)pi(0)gamma decay based on a sample of 275 x 10(6) BB pairs collected at the Gamma(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One of the B mesons is fully reconstructed in the B(0)-->K(0)(S)pi(0)gamma decay. The flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetry in the distribution of the proper time intervals between the two B decays. We obtain SK(0)(S)(pi(0)gamma) = -0.58(+0.46)(-0.38)(stat) +/- 0.11(syst) and AK(0)(S)(pi(0)gamma) = +0.03 +/- 0.34(stat) +/- 0.11(syst), for the K(0)(S)pi(0) invariant mass covering the full range up to 1.8 GeV/c2. We also measure the CP-violation parameters for the case B(0)-->K(*0)(-->K(0)(S)pi(0))gamma and obtain S(K(*0)gamma) = -0.79(+0.63)(-0.50)(stat) +/- 0.10(syst) for A(K(*0)gamma) fixed at 0.
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Affiliation(s)
- Y Ushiroda
- High Energy Accelerator Research Organization (KEK), Tsukuba
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94
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Chen KF, Abe K, Abe K, Aihara H, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen A, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Gorisek A, Haba J, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SE, Lee YJ, Lesiak T, Li J, Lin SW, Liventsev D, MacNaughton J, Mandl F, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohapatra D, Moloney GR, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Root N, Rozanska M, Sagawa H, Sakai Y, Sarangi TR, Sato N, Schietinger T, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Senyo K, Sevior ME, Shibata T, Shibuya H, Shwartz B, Sidorov V, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Ushiroda Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe M, Watanabe Y, Xie QL, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Ying J, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Measurement of polarization and triple-product correlations in B-->phiK* decays. Phys Rev Lett 2005; 94:221804. [PMID: 16090384 DOI: 10.1103/physrevlett.94.221804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2005] [Indexed: 05/03/2023]
Abstract
We present measurements of decay amplitudes and triple-product correlations in B-->phiK* decays based on 253 fb(-1) of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. The decay amplitudes for the three different helicity states are determined from the angular distributions of final-state particles. The longitudinal polarization amplitudes are found to be 0.45 +/- 0.05 +/- 0.02 for B0-->phiK(*0) and 0.52 +/- 0.08 +/- 0.03 for B+ -->phiK(*+) decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero.
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Affiliation(s)
- K-F Chen
- Department of Physics, National Taiwan University, Taipei, Taiwan
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95
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Abe K, Abe K, Adachi I, Aihara H, Akatsu M, Anipko D, Asano Y, Aushev T, Aziz T, Bahinipati S, Bakich AM, Banerjee S, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Eiges V, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim JH, Kim SK, Kim SM, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SH, Lesiak T, Li J, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Matyja A, Mitaroff W, Miyata H, Mizuk R, Nagamine T, Nagasaka Y, Nakano E, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Parslow N, Pestotnik R, Piilonen LE, Poluektov A, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schümann J, Semenov S, Senyo K, Seuster R, Shibuya H, Shwartz B, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Varvell KE, Villa S, Wang CC, Wang CH, Watanabe M, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D. Observation of the D1(2420)-->Dpi + pi- decays. Phys Rev Lett 2005; 94:221805. [PMID: 16090385 DOI: 10.1103/physrevlett.94.221805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2004] [Indexed: 05/03/2023]
Abstract
We report on the first observation of D0/1(2420)-->D0pi- pi+ and D+/1(2420-->D+ pi- pi+ decays (where the contribution from the dominant known D1-->D*pi decay mode is excluded) in the B- -->D0/1pi-) and (-)B0-->D+/1pi- decays, respectively. The observation is based on 15.2 x 10(7) B(-)B events collected with the Belle detector at the KEKB collider. We also set 90% confidence level upper limits for the branching fractions of the four following decays: B- -->D0/1pi-, D01-->D(*0)pi- pi+, (-)B0-->D+/1pi-, D+/1-->D(*+) pi- pi+, B- -->D(*0)2(2460)pi-, D(*0)2 -->D(*0) pi- pi+, (-)B0-->D(*+)2(2460)pi-, D(*+)2-->D(*+)pi- pi+.
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Affiliation(s)
- K Abe
- High Energy Accelerator Research Organization (KEK), Tsukuba, Japan
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96
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Choi SK, Olsen SL, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Bahinipati S, Bakich AM, Ban Y, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chen A, Chen WT, Cheon BG, Chistov R, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Drutskoy A, Eidelman S, Enari Y, Fang F, Fratina S, Gabyshev N, Gershon T, Gokhroo G, Golob B, Hara T, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Lee SE, Lee SH, Lesiak T, Li J, Lin SW, Liventsev D, Majumder G, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyata H, Mizuk R, Mohapatra D, Moloney GR, Nakano E, Nakao M, Nakazawa H, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Ostrowicz W, Palka H, Park CW, Parslow N, Pestotnik R, Piilonen LE, Rozanska M, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schwanda C, Shibuya H, Shwartz B, Somov A, Soni N, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Teramoto Y, Tian XC, Trabelsi K, Uehara S, Uglov T, Uno S, Varner G, Varvell KE, Villa S, Wang CH, Wang MZ, Watanabe M, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Yuan Y, Yusa Y, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zontar D, Zürcher D. Observation of a near-threshold omegaJ/psi mass enhancement in exclusive B-->KomegaJ/psi decays. Phys Rev Lett 2005; 94:182002. [PMID: 15904362 DOI: 10.1103/physrevlett.94.182002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2004] [Indexed: 05/02/2023]
Abstract
We report the observation of a near-threshold enhancement in the omegaJ/psi invariant mass distribution for exclusive B-->KomegaJ/psi decays. The results are obtained from a 253 fb(-1) data sample that contains 275 x 10(6) BB pairs that were collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. The statistical significance of the omegaJ/psi mass enhancement is estimated to be greater than 8sigma.
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Affiliation(s)
- S-K Choi
- Gyeongsang National University, Chinju
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97
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Chao Y, Chang P, Abe K, Abe K, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aushev T, Bahinipati S, Bakich AM, Bay A, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fang F, Flanagan J, Fratina S, Furukawa K, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Ikeda H, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kikutani E, Kim HJ, Kim JH, Kim SK, Kinoshita K, Koiso H, Korpar S, Krokovny P, Kumar S, Kuo CC, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SE, Lee SH, Lee YJ, Lesiak T, Li J, Limosani A, Lin SW, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohapatra D, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Park CW, Park H, Parslow N, Peak LS, Piilonen LE, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schümann J, Schwartz AJ, Senyo K, Sevior ME, Shidara T, Shwartz B, Sidorov V, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sugahara R, Sumisawa K, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Teramoto Y, Tian XC, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe Y, Yabsley BD, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yang H, Ying J, Yokoyama K, Yoshida M, Yoshida M, Zang SL, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Observation of B0-->pi0pi0. Phys Rev Lett 2005; 94:181803. [PMID: 15904360 DOI: 10.1103/physrevlett.94.181803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2004] [Indexed: 05/02/2023]
Abstract
We report the observation of the decay B0-->pi(0)pi(0), using a 253 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. The measured branching fraction is B(B0-->pi(0)pi(0))=(2.3(+0.4+0.2)(-0.5-0.3))x10(-6), with a significance of 5.8 standard deviations including systematic uncertainties. We also make a measurement of the direct CP violating asymmetry in this mode.
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Affiliation(s)
- Y Chao
- Department of Physics, National Taiwan University, Taipei
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Cai Z, Koike M, Sato H, Brezner M, Guo Q, Komatsu M, Okuno O, Okabe T. Electrochemical characterization of cast Ti-Hf binary alloys. Acta Biomater 2005; 1:353-6. [PMID: 16701813 DOI: 10.1016/j.actbio.2005.02.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2004] [Revised: 02/07/2005] [Accepted: 02/07/2005] [Indexed: 11/19/2022]
Abstract
This study characterized the electrochemical behavior of Ti-Hf binary alloys in a simulated oral environment. Ti-Hf alloys (10, 20, 25, 30, 35 and 40 mass% Hf) were prepared by arc-melting titanium sponge and hafnium sponge. Specimens of each alloy (n = 4) were prepared using a dental titanium casting system with a MgO-based investment. Specimens were inspected with X-ray radiography to ensure minimal internal porosity. Castings (n = 4) made from pure titanium and commercially pure titanium were used as controls. The ground flat surface (10 mm x 10 mm) on each specimen where approximately 30 microm was removed was used for the characterization. Sixteen-hour open-circuit potential (OCP) measurement, linear polarization and potentiodynamic cathodic polarization were performed sequentially in aerated (air + 10% CO2) MTZ synthetic saliva at 37 degrees C. Potentiodynamic anodic polarization was conducted in the same medium but deaerated (N2 + 10% CO2) 2 h before and during testing. Polarization resistance (R(P)) and Tafel slopes were determined, as were corrosion current density (I(CORR)) and passive current density (I(PASS)). Results were subjected to nonparametric statistical analysis (alpha = 0.05). The OCP stabilized (mean values -229 mV to -470 mV vs. SCE) for all specimens after the 16-h immersion. Similar passivation was observed for all the metals on their anodic polarization diagrams. The Kruskal-Wallis test showed significant differences in OCP among the test groups (p = 0.006). No significant differences were found in R(P), I(CORR) or I(PASS) among all the metals (p>0.3). Results indicate that the electrochemical behavior of the Ti-Hf alloys examined resembles that of pure titanium.
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Affiliation(s)
- Z Cai
- Department of Biomaterials Science, Baylor College of Dentistry, Texas A&M University System Health Science Center, 3302 Gaston Avenue, Dallas, TX 75246, USA.
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Mizuk R, Abe K, Abe K, Aihara H, Akatsu M, Asano Y, Aulchenko V, Aushev T, Bakich AM, Balagura V, Ban Y, Banerjee S, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chao Y, Chen A, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Haba J, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim JH, Kim SK, Kim SM, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Lee SE, Lee SH, Lesiak T, Li J, Lin SW, Liventsev D, Majumder G, Mandl F, Matsumoto T, Mitaroff W, Miyake H, Miyata H, Mohapatra D, Mori T, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nishida S, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Pestotnik R, Piilonen LE, Sagawa H, Sakai Y, Schietinger T, Schneider O, Schönmeier P, Schümann J, Semenov S, Senyo K, Seuster R, Shibuya H, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki SY, Tajima O, Takasaki F, Tamura N, Tanaka M, Teramoto Y, Tian XC, Uehara S, Uglov T, Ueno K, Uno S, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Yabsley BD, Yamaguchi A, Yamashita Y, Yamauchi M, Yang H, Ying J, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Observation of an isotriplet of excited charmed baryons decaying to lambda+c pi. Phys Rev Lett 2005; 94:122002. [PMID: 15903907 DOI: 10.1103/physrevlett.94.122002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2004] [Indexed: 05/02/2023]
Abstract
We report the observation of an isotriplet of excited charmed baryons, decaying into Lambda(+)(c)pi(-), Lambda(+)(c)pi(0), and Lambda(+)(c)pi(+). We measure the mass differences M(Lambda(+)(c)pi)-M(Lambda(+)(c)) and widths to be 515.4(+3.2+2.1)(-3.1-6.0) MeV/c(2), 61(+18+22)(-13-13) MeV for the neutral state; 505.4(+5.8+12.4)(-4.6-2.0) MeV/c(2), 62(+37+52)(-23-38) MeV for the charged state; and 514.5(+3.4+2.8)(-3.1-4.9) MeV/c(2), 75(+18+12)(-13-11) MeV for the doubly charged state, where the uncertainties are statistical and systematic, respectively. These results are obtained from a 281 fb(-1) data sample collected with the Belle detector near the Upsilon(4S) resonance, at the KEKB asymmetric energy e(+)e(-) collider.
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Affiliation(s)
- R Mizuk
- Institute for Theoretical and Experimental Physics, Moscow
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100
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Wang CC, Abe K, Abe K, Abe T, Adachi I, Aihara H, Asano Y, Aushev T, Bakich AM, Ban Y, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen KF, Chen WT, Cheon BG, Choi SK, Choi Y, Chuvikov A, Cole S, Dash M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Gershon T, Gokhroo G, Guo R, Haba J, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh K, Itoh R, Iwasaki H, Iwasaki Y, Kakuno H, Kang JH, Kang JS, Kapusta P, Katayama N, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kinoshita K, Krizan P, Krokovny P, Kumar S, Kwon YJ, Lange JS, Lee SE, Lee YJ, Lesiak T, Li J, Limosani A, Lin SW, Macnaughton J, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyata H, Mizuk R, Mohapatra D, Mori T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Park CW, Parslow N, Peak LS, Piilonen LE, Ronga FJ, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sato N, Schietinger T, Schneider O, Schümann J, Schwartz AJ, Semenov S, Senyo K, Sevior ME, Shibuya H, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumisawa K, Sumiyoshi T, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Varner G, Varvell KE, Villa S, Wang CH, Wang MZ, Watanabe M, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Ying J, Yusa Y, Zhang J, Zhang LM, Zhang ZP, Zhilich V, Ziegler T, Zontar D. Study of B0-->rho+/- pi-/+ time-dependent CP violation at Belle. Phys Rev Lett 2005; 94:121801. [PMID: 15903905 DOI: 10.1103/physrevlett.94.121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2004] [Indexed: 05/02/2023]
Abstract
We present a time-dependent analysis of CP violation in B0-->rho(+/-)pi(-/+) decays based on a 140 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A(rhopi)(CP)=-0.16+/-0.10(stat)+/-0.02(syst). An unbinned maximum-likelihood fit to the Deltat distributions yields C(rhopi)=0.25+/-0.17(stat)+0.02-0.06(syst), DeltaC(rhopi)=0.38+/-0.18(stat)+0.02-0.04(syst), S(rhopi)=-0.28+/-0.23(stat)+0.10-0.08(syst), and DeltaS(rhopi)=-0.30+/-0.24(stat)+/-0.09(syst). The direct CP violation parameters for B-->rho(+)pi(-) and B-->rho(-)pi(+) decays are A(+-)(rhopi)=-0.02+/-0.16(stat)+0.05-0.02(syst) and A(-+)(rhopi)=-0.53+/-0.29(stat)+0.09-0.04(syst).
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Affiliation(s)
- C C Wang
- Department of Physics, National Taiwan University, Taipei
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