CERN Accelerating science

Article
Report number arXiv:1109.4897
Title Measurement of the neutrino velocity with the OPERA detector in the CNGS beam
Related titleMeasurement of the neutrino velocity with the OPERA detector in the CNGS beam
Author(s)

Adam, T. (Louis Pasteur U., Strasbourg I) ; Agafonova, N. (Moscow, INR) ; Aleksandrov, A. (INFN, Naples ; Lebedev Inst.) ; Altinok, O. (Middle East Tech. U., Ankara) ; Alvarez Sanchez, P. (CERN) ; Anokhina, A. (Moscow State U.) ; Aoki, S. (Kobe U.) ; Ariga, A. (Bern U.) ; Ariga, T. (Bern U.) ; Autiero, D. (Lyon, IPN) ; Badertscher, A. (Zurich, ETH) ; Dhahbi, A.Ben (Zurich, ETH) ; Bertolin, A. (INFN, Padua) ; Bozza, C. (Salerno U. ; INFN, Salerno) ; Brugiere, T. (Lyon, IPN) ; Brugnera, R. (Padua U. ; INFN, Padua) ; Brunet, F. (Annecy, LAPP) ; Brunetti, G. (Bologna U.) ; Buontempo, S. (INFN, Naples) ; Carlus, B. (Lyon, IPN) ; Cavanna, F. (INFN, Aquila) ; Cazes, A. (Lyon, IPN) ; Chaussard, L. (Lyon, IPN) ; Chernyavsky, M. (Lebedev Inst.) ; Chiarella, V. (INFN, Rome) ; Chukanov, A. (Dubna, JINR) ; Colosimo, G. (Rome U.) ; Crespi, M. (Rome U.) ; D'Ambrosio, N. (Gran Sasso) ; De Lellis, G. (Naples U. ; INFN, Naples) ; De Serio, M. (INFN, Bari) ; Declais, Y. (Lyon, IPN) ; del Amo Sanchez, P. (Annecy, LAPP) ; Di Capua, F. (INFN, Naples) ; Di Crescenzo, A. (Naples U. ; INFN, Naples) ; Di Ferdinando, D. (INFN, Bologna) ; Di Marco, N. (Gran Sasso) ; Dmitrievsky, S. (Dubna, JINR) ; Dracos, M. (Louis Pasteur U., Strasbourg I) ; Duchesneau, D. (Annecy, LAPP) ; Dusini, S. (INFN, Padua) ; Dzhatdoev, T. (Moscow State U.) ; Ebert, J. (Hamburg U., Inst. Theor. Phys. II) ; Efthymiopoulos, I. (CERN) ; Egorov, O. (Moscow, ITEP) ; Ereditato, A. (Bern U.) ; Esposito, L.S. (Zurich, ETH) ; Favier, J. (Annecy, LAPP) ; Ferber, T. (Hamburg U.) ; Fini, R.A. (INFN, Bari) ; Fukuda, T. (Toho U.) ; Garfagnini, A. (Padua U. ; INFN, Padua) ; Giacomelli, G. (Bologna U. ; INFN, Bologna) ; Giorgini, M. (Bologna U.) ; Giovannozzi, M. (CERN) ; Girerd, C. (Lyon, IPN) ; Goldberg, J. (Technion) ; Gollnitz, C. (Hamburg U., Inst. Theor. Phys. II) ; Golubkov, D. (Moscow, ITEP) ; Goncharova, L. (Lebedev Inst.) ; Gornushkin, Y. (Dubna, JINR) ; Grella, G. (Salerno U. ; INFN, Salerno) ; Grianti, F. (INFN, Rome ; Urbino U.) ; Gschwendtner, E. (CERN) ; Guerin, C. (Lyon, IPN) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Gustavino, C. (INFN, Rome) ; Hagner, C. (Hamburg U., Inst. Theor. Phys. II) ; Hamada, K. (Nagoya U.) ; Hara, T. (Kobe U.) ; Enikeev, R. (Moscow, INR) ; Hierholzer, M. (Hamburg U., Inst. Theor. Phys. II ; Bern U.) ; Hollnagel, A. (Hamburg U., Inst. Theor. Phys. II) ; Ieva, M. (INFN, Bari) ; Ishida, H. (Toho U.) ; Ishiguro, K. (Nagoya U.) ; Jakovcic, K. (Boskovic Inst., Zagreb) ; Jollet, C. (Louis Pasteur U., Strasbourg I) ; Jones, M. (CERN) ; Juget, F. (Bern U.) ; Kamiscioglu, M. (Middle East Tech. U., Ankara) ; Kawada, J. (Bern U.) ; Kim, S.H. (Gyeongsang Natl. U. ; Pusan Natl. U.) ; Kimura, M. (Toho U.) ; Kiritsis, E. (Crete U.) ; Kitagawa, N. (Nagoya U.) ; Klicek, B. (Boskovic Inst., Zagreb) ; Knuesel, J. (Bern U.) ; Kodama, K. (Aichi U.) ; Komatsu, M. (Nagoya U.) ; Kose, U. (INFN, Padua) ; Kreslo, I. (Bern U.) ; Lazzaro, C. (Zurich, ETH) ; Lenkeit, J. (Hamburg U., Inst. Theor. Phys. II) ; Ljubicic, A. (Boskovic Inst., Zagreb) ; Longhin, A. (INFN, Rome) ; Malgin, A. (Moscow, INR) ; Mandrioli, G. (INFN, Bologna) ; Marteau, J. (Lyon, IPN) ; Matsuo, T. (Toho U.) ; Matveev, V. (Moscow, INR) ; Mauri, N. (INFN, Rome) ; Mazzoni, A. (Rome U.) ; Medinaceli, E. (Padua U. ; INFN, Padua) ; Meisel, F. (Bern U.) ; Meregaglia, A. (Louis Pasteur U., Strasbourg I) ; Migliozzi, P. (INFN, Naples) ; Mikado, S. (Toho U.) ; Missiaen, D. (CERN) ; Monacelli, P. (INFN, Aquila) ; Morishima, K. (Nagoya U.) ; Moser, U. (Bern U.) ; Muciaccia, M.T. (Bari U. ; INFN, Bari) ; Naganawa, N. (Nagoya U.) ; Naka, T. (Nagoya U.) ; Nakamura, M. (Nagoya U.) ; Nakano, T. (Nagoya U.) ; Nakatsuka, Y. (Nagoya U.) ; Naumov, D. (Dubna, JINR) ; Nikitina, V. (Moscow State U.) ; Nitti, F. (APC, Paris) ; Ogawa, S. (Toho U.) ; Okateva, N. (Lebedev Inst.) ; Olchevsky, A. (Dubna, JINR) ; Palamara, O. (Gran Sasso) ; Paoloni, A. (INFN, Rome) ; Park, B.D. (Gyeongsang Natl. U.) ; Park, I.G. (Gyeongsang Natl. U.) ; Pastore, A. (Bari U. ; INFN, Bari) ; Patrizii, Laura (INFN, Bologna) ; Pennacchio, E. (Lyon, IPN) ; Pessard, H. (Annecy, LAPP) ; Pistillo, C. (Bern U.) ; Polukhina, N. (Lebedev Inst.) ; Pozzato, M. (Bologna U. ; INFN, Bologna) ; Pretzl, K. (Bern U.) ; Pupilli, F. (Gran Sasso) ; Rescigno, R. (Salerno U. ; INFN, Salerno) ; Riguzzi, F. (INFN, Rome) ; Roganova, T. (Moscow State U.) ; Rokujo, H. (Kobe U.) ; Rosa, G. (Rome U. ; INFN, Rome) ; Rostovtseva, I. (Moscow, ITEP) ; Rubbia, A. (Zurich, ETH) ; Russo, A. (INFN, Naples) ; Ryasny, V. (Moscow, INR) ; Ryazhskaya, O. (Moscow, INR) ; Sato, O. (Nagoya U.) ; Sato, Y. (Utsunomiya U.) ; Sahnoun, Z. (INFN, Bologna ; CRNA, Algeria) ; Schembri, A. (Gran Sasso) ; Schuler, J. (Louis Pasteur U., Strasbourg I) ; Scotto Lavina, L. (Bern U. ; SUBATECH, Nantes) ; Serrano, J. (CERN) ; Shakiryanova, I. (Moscow, INR) ; Sheshukov, A. (Dubna, JINR) ; Shibuya, H. (Toho U.) ; Shoziyoev, G. (Moscow State U.) ; Simone, S. (Bari U. ; INFN, Bari) ; Sioli, M. (Bologna U. ; INFN, Bologna) ; Sirignano, C. (Padua U. ; INFN, Padua) ; Sirri, G. (INFN, Bologna) ; Song, J.S. (Gyeongsang Natl. U.) ; Spinetti, M. (INFN, Rome) ; Stanco, L. (INFN, Padua) ; Starkov, N. (Lebedev Inst.) ; Stellacci, S. (Salerno U. ; INFN, Salerno) ; Stipcevic, M. (Boskovic Inst., Zagreb) ; Strauss, T. (Bern U.) ; Takahashi, S. (Kobe U.) ; Tenti, M. (Bologna U.) ; Terranova, F. (INFN, Rome ; Milan U.) ; Tezuka, I. (Utsunomiya U.) ; Tioukov, V. (INFN, Naples) ; Tolun, P. (Middle East Tech. U., Ankara) ; N.T. Tran,i (Lyon, IPN) ; Tufanli, S. (Bern U.) ; Vilain, P. (Brussels U.) ; Vladimirov, M. (Lebedev Inst.) ; Votano, L. (INFN, Rome) ; Vuilleumier, J.L. (Bern U.) ; Wilquet, G. (Brussels U.) ; Wonsak, B. (Hamburg U., Inst. Theor. Phys. II) ; Wurtz, J. (Louis Pasteur U., Strasbourg I) ; Yakushev, V. (Moscow, INR) ; Yoon, C.S. (Gyeongsang Natl. U.) ; Yoshida, J. (Nagoya U.) ; Zaitsev, Y. (Moscow, ITEP) ; Zemskova, S. (Dubna, JINR) ; Zghiche, A. (Annecy, LAPP)

Publication 2012
Imprint 23 Sep 2011
Number of pages 24
Note Comments: 34 pages, 22 figures This version replaces all previous ones
34 pages, 22 figures This version replaces all previous ones
In: JHEP 10 (2012) 093
DOI 10.1007/JHEP10(2012)093
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; OPERA CNGS1
Abstract The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km with much higher accuracy than previous studies conducted with accelerator neutrinos. The measurement is based on high-statistics data taken by OPERA in the years 2009, 2010 and 2011. Dedicated upgrades of the CNGS timing system and of the OPERA detector, as well as a high precision geodesy campaign for the measurement of the neutrino baseline, allowed reaching comparable systematic and statistical accuracies. An early arrival time of CNGS muon neutrinos with respect to the one computed assuming the speed of light in vacuum of (60.7 \pm 6.9 (stat.) \pm 7.4 (sys.)) ns was measured. This anomaly corresponds to a relative difference of the muon neutrino velocity with respect to the speed of light (v-c)/c = (2.48 \pm 0.28 (stat.) \pm 0.30 (sys.)) \times 10-5.
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