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

Author:

,Adam T.,Agafonova N.,Aleksandrov A.,Altinok O.,Alvarez Sanchez P.,Anokhina A.,Aoki S.,Ariga A.,Ariga T.,Autiero D.,Badertscher A.,Ben Dhahbi A.,Bertolin A.,Bozza C.,Brugière T.,Brugnera R.,Brunet F.,Brunetti G.,Buontempo S.,Carlus B.,Cavanna F.,Cazes A.,Chaussard L.,Chernyavsky M.,Chiarella V.,Chukanov A.,Colosimo G.,Crespi M.,D’Ambrosio N.,De Lellis G.,De Serio M.,Déclais Y.,del Amo Sanchez P.,Di Capua F.,Di Crescenzo A.,Di Ferdinando D.,Di Marco N.,Dmitrievsky S.,Dracos M.,Duchesneau D.,Dusini S.,Dzhatdoev T.,Ebert J.,Efthymiopoulos I.,Egorov O.,Ereditato A.,Esposito L. S.,Favier J.,Ferber T.,Fini R. A.,Fukuda T.,Garfagnini A.,Giacomelli G.,Giorgini M.,Giovannozzi M.,Girerd C.,Goldberg J.,Göllnitz C.,Golubkov D.,Goncharova L.,Gornushkin Y.,Grella G.,Grianti F.,Gschwendtner E.,Guerin C.,Guler A. M.,Gustavino C.,Hagner C.,Hamada K.,Hara T.,Enikeev R.,Hierholzer M.,Hollnagel A.,Ieva M.,Ishida H.,Ishiguro K.,Jakovcic K.,Jollet C.,Jones M.,Juget F.,Kamiscioglu M.,Kawada J.,Kim S. H.,Kimura M.,Kiritsis E.,Kitagawa N.,Klicek B.,Knuesel J.,Kodama K.,Komatsu M.,Kose U.,Kreslo I.,Lazzaro C.,Lenkeit J.,Ljubicic A.,Longhin A.,Malgin A.,Mandrioli G.,Marteau J.,Matsuo T.,Matveev V.,Mauri N.,Mazzoni A.,Medinaceli E.,Meisel F.,Meregaglia A.,Migliozzi P.,Mikado S.,Missiaen D.,Monacelli P.,Morishima K.,Moser U.,Muciaccia M. T.,Naganawa N.,Naka T.,Nakamura M.,Nakano T.,Nakatsuka Y.,Naumov D.,Nikitina V.,Nitti F.,Ogawa S.,Okateva N.,Olchevsky A.,Palamara O.,Paoloni A.,Park B. D.,Park I. G.,Pastore A.,Patrizii L.,Pennacchio E.,Pessard H.,Pistillo C.,Polukhina N.,Pozzato M.,Pretzl K.,Pupilli F.,Rescigno R.,Riguzzi F.,Roganova T.,Rokujo H.,Rosa G.,Rostovtseva I.,Rubbia A.,Russo A.,Ryasny V.,Ryazhskaya O.,Sato O.,Sato Y.,Sahnoun Z.,Schembri A.,Schuler J.,Scotto Lavina L.,Serrano J.,Shakiryanova I.,Sheshukov A.,Shibuya H.,Shoziyoev G.,Simone S.,Sioli M.,Sirignano C.,Sirri G.,Song J. S.,Spinetti M.,Stanco L.,Starkov N.,Stellacci S.,Stipcevic M.,Strauss T.,Takahashi S.,Tenti M.,Terranova F.,Tezuka I.,Tioukov V.,Tolun P.,Trani N. T.,Tufanli S.,Vilain P.,Vladimirov M.,Votano L.,Vuilleumier J.-L.,Wilquet G.,Wonsak B.,Wurtz J.,Yakushev V.,Yoon C. S.,Yoshida J.,Zaitsev Y.,Zemskova S.,Zghiche A.

Abstract

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. 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 $ \left( {6.5\pm 7.4\left( {\mathrm{stat}.} \right)_{-8.0}^{+8.3}\left( {\mathrm{sys}.} \right)} \right)\mathrm{ns} $ was measured corresponding to a relative difference of the muon neutrino velocity with respect to the speed of light $ {{{\left( {\upsilon -c} \right)}} \left/ {c} \right.}=\left( {2.7\pm 3.1\left( {\mathrm{stat}.} \right)_{-3.3}^{+3.4}\left( {\mathrm{sys}.} \right)} \right)\times {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 flight at the single interaction level.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference68 articles.

1. OPERA collaboration, R. Acquafredda et al., The OPERA experiment in the CERN to Gran Sasso neutrino beam, 2009 JINST 4 P04018 [INSPIRE].

2. A. Ereditato, K. Niwa and P. Strolin, The emulsion technique for short, medium and long baseline ν μ − ν τ oscillation experiments, INFN-AE-97-06, CERN, Geneva Switzerland (1997) [DAPNU-97-07] [INSPIRE].

3. OPERA collaboration, H. Shibuya et al., Letter of intent: the OPERA emulsion detector for a long-baseline neutrino-oscillation experiment, CERN-SPSC-97-24, CERN, Geneva Switzerland (2007) [LNGS-LOI-8-97] [INSPIRE].

4. OPERA collaboration, M. Guler et al., An appearance experiment to search for ν μ → ν τ oscillations in the CNGS beam: experimental proposal, CERN-SPSC-2000-028, CERN, Geneva Switzerland (2000) [LNGS-P25-00] [INSPIRE].

5. OPERA collaboration, M. Guler et al., Status report on the OPERA experiment, CERN-SPSC-2001-025, CERN, Geneva Switzerland (2001) [LNGS-EXP-30-2001-ADD-1] [INSPIRE].

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