The OPERA experiment

N Agafonova,M De Serio,S Simone,C Jollet,I Shakiryanova,D Duchesneau,A Sheshukov,B Büttner,G Shoziyoev,F Pupilli,G Giacomelli,L Votano,C Pistillo,P Del Amo Sanchez,N Di Marco,L Pasqualini,L Consiglio,M Pozzato,M Kamiscioglu,G De Lellis,F Terranova,B Hosseini,S Mikado,S Zemskova,C Kamiscioglu,M Roda,J Lenkeit,Y Nakatsuka,M Spinetti,P Strolin,C Göllnitz,A Di Crescenzo,L Patrizii,H Pessard,P Monacelli,I Kreslo,H Shibuya,A Meregaglia,A Garfagnini,R Brugnera,A Longhin,C Gustavino,D Di Ferdinando,T Nakano,M Tenti,A Bertolin,S Ogawa,G Mandrioli,A Hollnagel,S Dmitrievski,N Mauri,J Goldberg,V Tioukov,G Grella,S Dusini,G Sirri,J Ebert,T Hara,E Medinaceli,A Paoloni ,G Wilquet ,S H Kim ,Simona Maria Stellacci ,G Rosa ,A Ereditato ,T Ariga ,B Wonsak ,D Bender ,M.c Montesi ,A Ljubičić ,P Vilain ,C S Yoon ,S Tufanli ,J H Kim ,M Dracos ,N Starkov ,Adam Schembri ,N Kitagawa ,Д Подгрудков ,A Lauria ,A Pastore ,Y Gornushkin ,A Chukanov ,T Strauss ,G Galati ,M Stipčević ,C Bozza ,V Matveev ,C Sirignano ,N Okateva ,A Aleksandrov ,N Naganawa ,Hirokazu Ishida ,K Ozaki ,J L Vuilleumier ,Masahiro Nakamura ,Takashi Naka ,N D’ambrosio ,L Stančo ,K Niwa ,U Köse ,K Kodama ,M S Vladimirov ,S Buontempo ,Т М Роганова ,A S Malgin ,Keisuke Morishima ,T Shchedrina ,Maša Malenica ,B D Park ,T Omura ,I G Park ,Hiroki Rokujo ,Satoru Takahashi ,A Buonaura ,M Güler ,K Jakovc̆ić ,O G Ryazhskaya ,Osamu Sato ,T Dzhatdoev ,Shigeki Aoki ,M Komatsu ,C Hagner ,N Polukhina ,R A Fini ,Takeshi Shiraishi ,M Chernyavsky ,T Matsuo ,M Sioli ,P Loverre ,J Kawada ,K Ishiguro ,А.g Оlshevsky ,A Ariga ,Tsutomu Fukuda ,A Anokhina ,M T Muciaccia ,B Kliček ,A Zghiche

doi:10.1016/j.nuclphysbps.2015.10.087

Abstract

The OPERA experiment was designed to study νμ→ντ oscillations in appearance mode using the CERN to Gran Sasso high energy neutrino beam. From 2008 to 2012, 19505 CNGS neutrino interactions were recorded in the OPERA detector. At the present status of the analysis, 4 ντ candidate events have been observed, establishing the oscillation mechanism in the atmospheric sector with a significance of 4.2 σ. The oscillation analysis will be presented in detail and the candidate events will be described. The final measurement of the atmospheric muon charge ratio in the TeV region will be also reported.

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