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Agafonova NY, Aglietta M, Antonioli P, Ashikhmin VV, Bari G, Bertoni R, Bressan E, Bruno G, Dadykin VL, Fulgione W, Galeotti P, Garbini M, Ghia PL, Giusti P, Kemp E, Mal'gin AS, Miguez B, Molinario A, Persiani R, Pless IA, Ryasny VG, Ryazhskaya OG, Saavedra O, Sartorelli G, Shakyrianova IR, Selvi M, Trinchero GC, Vigorito C, Yakushev VF, Zichichi A, Razeto A. Measurement of the velocity of neutrinos from the CNGS beam with the large volume detector. Phys Rev Lett 2012; 109:070801. [PMID: 23006352 DOI: 10.1103/physrevlett.109.070801] [Citation(s) in RCA: 3] [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: 07/18/2012] [Indexed: 06/01/2023]
Abstract
We report the measurement of the time of flight of ∼17 GeV ν(μ) on the CNGS baseline (732 km) with the Large Volume Detector (LVD) at the Gran Sasso Laboratory. The CERN-SPS accelerator has been operated from May 10th to May 24th 2012, with a tightly bunched-beam structure to allow the velocity of neutrinos to be accurately measured on an event-by-event basis. LVD has detected 48 neutrino events, associated with the beam, with a high absolute time accuracy. These events allow us to establish the following limit on the difference between the neutrino speed and the light velocity: -3.8 × 10(-6) < (v(ν)-c)/c < 3.1 × 10(-6) (at 99% C.L.). This value is an order of magnitude lower than previous direct measurements.
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Affiliation(s)
- N Yu Agafonova
- Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia
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Aglietta M, Alpat B, Alyea ED, Antonioli P, Badino G, Bari G, Basile M, Berezinsky VS, Bersani F, Bertaina M, Bertoni R, Bonoli G, Bosco A, Bruni G, Cara Romeo G, Castagnoli C, Castellina A, Chiavassa A, Chinellato JA, Cifarelli L, Cindolo F, Conforto G, Contin A, Dadykin VL, De Silva A, Deutsch M, Dominici P, Dos Santos LG, Emaldi L, Enikeev RI, Fabbri FL, Fulgione W, Galeotti P, Ghetti C, Ghia P, Giusti P, Granella R, Grianti F, Guidi G, Hafen ES, Haridas P, Iacobucci G, Inoue N, Kemp E, Khalchukov FF, Korolkova EV, Korchaguin PV, Korchaguin VB, Kudryavtsev VA, Lau K, Luvisetto M, Maccarone G, Malguin AS, Mantovani R, Massam T, Mayes B, Megna A, Melagrana C, Mengotti Silva N, Morello C, Moromisato J, Nania R, Navarra G, Panaro L, Periale L, Pesci A, Picchi P, Pinsky L, Pless IA, Pyrlik J, Ryasny VG, Ryazhskaya OG, Saavedra O, Saitoh K, Santini S, Sartorelli G, Selvi M, Taborgna N, Talochkin VP, Tang J, Trinchero GC, Tsuji S, Turtelli A, Uman I, Vallania P, Van Buren G, Vernetto S, Vetrano F, Vigorito C, von Goeler E, Votano L, Wada T, Weinstein R, Widgoff M, Yakushev VF, Yamamoto I, Zatsepin GT, Zichichi A. Upper limit on the prompt muon flux derived from the LVD underground experiment. Int J Clin Exp Med 1999. [DOI: 10.1103/physrevd.60.112001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Aglietta M, Badino G, Bologna G, Castagnoli C, Castellina A, Fulgione W, Galeotti P, Saavedra O, Trinchero G, Vernetto S, Dadykin VL, Khalchukov FF, Kortchaguin VB, Kortchaguin PV, Kudryavtsev VA, Malguin AS, Ryasny VG, Ryazhskaya OG, Yakushev VF, Zatsepin GT. Neutron flux generated by cosmic-ray mouns at 5200 hg/cm2 s.r. underground. Depth-neutron intensity curve. ACTA ACUST UNITED AC 1989. [DOI: 10.1007/bf02525079] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.3] [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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