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Measurement of the neutrino velocity with the OPERA detector in the CNGS beam

  • T. Adam
  • , N. Agafonova
  • , A. Aleksandrov
  • , O. Altinok
  • , P. Alvarez Sanchez
  • , A. Anokhina
  • , S. Aoki
  • , A. Ariga
  • , T. Ariga
  • , D. Autiero
  • , A. Badertscher
  • , A. Ben Dhahbi
  • , A. Bertolin
  • , C. Bozza
  • , T. Brugière
  • , R. Brugnera
  • , F. Brunet
  • , G. Brunetti
  • , S. Buontempo
  • , B. Carlus
  • F. Cavanna, A. Cazes, L. Chaussard, M. Chernyavsky, V. Chiarella, A. Chukanov, G. Colosimo, M. Crespi, N. D'Ambrosio, G. De Lellis, M. De Serio, Y. Déclais, P. Del Amo Sanchez, F. Di Capua, A. Di Crescenzo, D. Di Ferdinando, N. Di Marco, S. Dmitrievsky, M. Dracos, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, I. Efthymiopoulos, O. Egorov, A. Ereditato, L. S. Esposito, J. Favier, T. Ferber, R. A. Fini, T. Fukuda, A. Garfagnini, G. Giacomelli, M. Giorgini, M. Giovannozzi, C. Girerd, J. Goldberg, C. Göllnitz, D. Golubkov, L. Goncharova, Y. Gornushkin, G. Grella, F. Grianti, E. Gschwendtner, C. Guerin, A. M. Guler, C. Gustavino, C. Hagner, K. Hamada, T. Hara, R. Enikeev, M. Hierholzer, A. Hollnagel, M. Ieva, H. Ishida, K. Ishiguro, K. Jakovcic, C. Jollet, M. Jones, F. Juget, M. Kamiscioglu, J. Kawada, S. H. Kim, M. Kimura, E. Kiritsis, N. Kitagawa, B. Klicek, J. Knuesel, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, C. Lazzaro, J. Lenkeit, A. Ljubicic, A. Longhin, A. Malgin, G. Mandrioli, J. Marteau, T. Matsuo, V. Matveev, N. Mauri, A. Mazzoni, E. Medinaceli, F. Meisel, A. Meregaglia, P. Migliozzi, S. Mikado, D. Missiaen, P. Monacelli, K. Morishima, U. Moser, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, Y. Nakatsuka, D. Naumov, V. Nikitina, F. Nitti, S. Ogawa, N. Okateva, A. Olchevsky, O. Palamara, A. Paoloni, B. D. Park, I. G. Park, A. Pastore, L. Patrizii, E. Pennacchio, H. Pessard, C. Pistillo, N. Polukhina, M. Pozzato, K. Pretzl, F. Pupilli, R. Rescigno, F. Riguzzi, T. Roganova, H. Rokujo, G. Rosa, I. Rostovtseva, A. Rubbia, A. Russo, V. Ryasny, O. Ryazhskaya, O. Sato, Y. Sato, Z. Sahnoun, A. Schembri, J. Schuler, L. Scotto Lavina, J. Serrano, I. Shakiryanova, A. Sheshukov, H. Shibuya, G. Shoziyoev, S. Simone, M. Sioli, C. Sirignano, G. Sirri, J. S. Song, M. Spinetti, L. Stanco, N. Starkov, S. Stellacci, M. Stipcevic, T. Strauss, S. Takahashi, M. Tenti, F. Terranova, I. Tezuka, V. Tioukov, P. Tolun, N. T. Tran, S. Tufanli, P. Vilain, M. Vladimirov, L. Votano, J. L. Vuilleumier, G. Wilquet, B. Wonsak, J. Wurtz, V. Yakushev, C. S. Yoon, J. Yoshida, Y. Zaitsev, S. Zemskova, A. Zghiche
  • Université de Strasbourg
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • INFN Sezione di Napoli
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Middle East Technical University (METU)
  • European Organization for Nuclear Research
  • Moscow State University
  • Kobe University
  • University of Bern
  • IGFL, Université de Lyon, Université Lyon 1
  • ETH Zurich
  • INFN
  • University of Salerno
  • University of Padova
  • Université Savoie Mont Blanc
  • University of Bologna
  • Università Dell'Aquila
  • LNF-INFN
  • Joint Institute for Nuclear Research, Dubna
  • University of Rome
  • Laboratori Nazionali del Gran Sasso
  • University of Naples Federico II
  • INFN Sezione di Bari
  • INFN Sezione di Bologna
  • Universität Hamburg
  • Institute for Theoretical and Experimental Physics
  • Toho University
  • INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Milan
  • Technion - Israel Institute of Technology
  • University of Urbino Carlo Bo
  • Sezione di Roma
  • Nagoya University
  • Ruđer Bošković Institute
  • Gyeongsang National University
  • Pusan National University
  • Laboratoire de Probabilités et Modèles Aléatoires
  • University of Crete
  • Aichi University of Education
  • Università degli studi di Bari Aldo Moro
  • Asan Medical Center
  • Istituto Nazionale di Geofisica e Vulcanologia (INGV)
  • Utsunomiya University
  • Algiers Observatory
  • SUBATECH
  • University of Milano-Bicocca
  • Université Libre de Bruxelles

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

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. The measurement is based on 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 arrival time of CNGS muon neutrinos with respect to the one computed assuming the speed of light in vacuum of (6:5 ± 7:4 (stat:) +8.34 -8.0(sys:)) ns was measured corresponding to a relative difference of the muon neutrino velocity with respect to the speed of light (v - c)=c = (2:7 ± 3:1 (stat:) +3.4 -3:3 (sys:)) × 10-6. The above result, obtained by comparing the time distributions of neutrino interactions and of protons hitting the CNGS target in 10.5 μs long extractions, was confirmed by a test performed at the end of 2011 using a short bunch beam allowing to measure the neutrino time of ight at the single interaction level.

langue originaleAnglais
Numéro d'article93
journalJournal of High Energy Physics
Volume2012
Numéro de publication10
Les DOIs
étatPublié - 1 janv. 2012
Modification externeOui

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