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

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ID: 272600
2012
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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.
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Authors The OPERA collaboration,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,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. Trani,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;The OPERA collaboration;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;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. Trani;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;
Journal journal of high energy physics
Year 2012
DOI
10.1007/jhep10(2012)093
URL
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