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Sumihama M, Adachi I, Ahn JK, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bakich AM, Bansal V, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Czank T, Dash N, Di Carlo S, Doležal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Kato Y, Kiesling C, Kim DY, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kumar R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakano E, Nakano T, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Niiyama M, Nisar NK, Nishida S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Ritter M, Russo G, Sahoo D, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Taniguchi N, Tenchini F, Uchida M, Uglov T, Uno S, Urquijo P, Vahsen SE, Van Hulse C, Varner G, Vorobyev V, Vossen A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanuki S, Widmann E, Won E, Ye H, Yelton J, Yuan CZ, Yusa Y, Zakharov S, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Observation of Ξ(1620)^{0} and Evidence for Ξ(1690)^{0} in Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} Decays. PHYSICAL REVIEW LETTERS 2019; 122:072501. [PMID: 30848612 DOI: 10.1103/physrevlett.122.072501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/08/2019] [Indexed: 06/09/2023]
Abstract
We report the first observation of the double strange baryon Ξ(1620)^{0} in its decay to Ξ^{-}π^{+} via Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} decays based on a 980 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The mass and width are measured to be 1610.4±6.0(stat)_{-4.2}^{+6.1} (syst) MeV/c^{2} and 59.9±4.8(stat)_{-7.1}^{+2.8}(syst) MeV, respectively. We obtain 4.0σ evidence of the Ξ(1690)^{0} with the same data sample. These results shed light on the structure of hyperon resonances with strangeness S=-2.
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Affiliation(s)
- M Sumihama
- Gifu University, Gifu 501-1193
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - I Adachi
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - J K Ahn
- Korea University, Seoul 136-713
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S Al Said
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973
| | - H Atmacan
- University of South Carolina, Columbia, South Carolina 29208
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - R Ayad
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - V Babu
- Tata Institute of Fundamental Research, Mumbai 400005
| | - I Badhrees
- King Abdulaziz City for Science and Technology, Riyadh 11442
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - A M Bakich
- School of Physics, University of Sydney, Sydney, New South Wales 2006
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - C Beleño
- II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073 Göttingen
| | - M Berger
- Stefan Meyer Institute for Subatomic Physics, Vienna 1090
| | - V Bhardwaj
- Indian Institute of Science Education and Research Mohali, SAS Nagar, Mohali 140306
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Assam 781039
| | - T Bilka
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - J Biswal
- J. Stefan Institute, 1000 Ljubljana
| | - G Bonvicini
- Wayne State University, Detroit, Michigan 48202
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - A Chen
- National Central University, Chung-li 32054
| | | | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 305-806
| | - S-K Choi
- Gyeongsang National University, Chinju 660-701
| | - Y Choi
- Sungkyunkwan University, Suwon 440-746
| | - S Choudhury
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - S Cunliffe
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Czank
- Department of Physics, Tohoku University, Sendai 980-8578
| | - N Dash
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - S Di Carlo
- LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - T V Dong
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Z Drásal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - D Epifanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - R Garg
- Panjab University, Chandigarh 160014
| | - V Gaur
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - N Gabyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - M Gelb
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Giri
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - P Goldenzweig
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - E Guido
- INFN-Sezione di Torino, 10125 Torino
| | - J Haba
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | | | - S Hirose
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - W-S Hou
- Department of Physics, National Taiwan University, Taipei 10617
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - A Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578
| | - R Itoh
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Iwasaki
- Osaka City University, Osaka 558-8585
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - H B Jeon
- Kyungpook National University, Daegu 702-701
| | - S Jia
- Beihang University, Beijing 100191
| | - Y Jin
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - K K Joo
- Chonnam National University, Kwangju 660-701
| | - T Julius
- School of Physics, University of Melbourne, Victoria 3010
| | - A B Kaliyar
- Indian Institute of Technology Madras, Chennai 600036
| | - K H Kang
- Kyungpook National University, Daegu 702-701
| | - G Karyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Y Kato
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - D Y Kim
- Soongsil University, Seoul 156-743
| | - J B Kim
- Korea University, Seoul 136-713
| | - K T Kim
- Korea University, Seoul 136-713
| | - S H Kim
- Hanyang University, Seoul 133-791
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - R Kroeger
- University of Mississippi, University, Mississippi 38677
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Y-J Kwon
- Yonsei University, Seoul 120-749
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I S Lee
- Hanyang University, Seoul 133-791
| | - S C Lee
- Kyungpook National University, Daegu 702-701
| | - L K Li
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y B Li
- Peking University, Beijing 100871
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - M Lubej
- J. Stefan Institute, 1000 Ljubljana
| | - T Luo
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - M Merola
- INFN-Sezione di Napoli, 80126 Napoli
- Università di Napoli Federico II, 80055 Napoli
| | | | - H Miyata
- Niigata University, Niigata 950-2181
| | - R Mizuk
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | | | - T Mori
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN-Sezione di Torino, 10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - T Nakano
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - M Nakao
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Nanut
- J. Stefan Institute, 1000 Ljubljana
| | - K J Nath
- Indian Institute of Technology Guwahati, Assam 781039
| | - Z Natkaniec
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | | | - N K Nisar
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - S Nishida
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Ono
- Nippon Dental University, Niigata 951-8580
- Niigata University, Niigata 950-2181
| | - P Pakhlov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - B Pal
- Brookhaven National Laboratory, Upton, New York 11973
| | - S Pardi
- INFN-Sezione di Napoli, 80126 Napoli
| | - H Park
- Kyungpook National University, Daegu 702-701
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | | | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - V Popov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - G Russo
- INFN-Sezione di Napoli, 80126 Napoli
| | - D Sahoo
- Tata Institute of Fundamental Research, Mumbai 400005
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - T Sanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - O Schneider
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015
| | - G Schnell
- University of the Basque Country UPV/EHU, 48080 Bilbao
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - V Shebalin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - C P Shen
- Beihang University, Beijing 100191
| | - T-A Shibata
- Tokyo Institute of Technology, Tokyo 152-8550
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
- Excellence Cluster Universe, Technische Universität München, 85748 Garching
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - J F Strube
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN-Sezione di Torino, 10125 Torino
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195
| | - N Taniguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - F Tenchini
- School of Physics, University of Melbourne, Victoria 3010
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - S Uno
- SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Van Hulse
- University of the Basque Country UPV/EHU, 48080 Bilbao
| | - G Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - V Vorobyev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - A Vossen
- Duke University, Durham, North Carolina 27708
| | - B Wang
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - P Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X L Wang
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | | | - S Watanuki
- Department of Physics, Tohoku University, Sendai 980-8578
| | - E Widmann
- Stefan Meyer Institute for Subatomic Physics, Vienna 1090
| | - E Won
- Korea University, Seoul 136-713
| | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J Yelton
- University of Florida, Gainesville, Florida 32611
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - S Zakharov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - Z P Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Zhukova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - V Zhulanov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
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