Observation of tau neutrino appearance in the CNGS beam with the OPERA experiment

Agafonova, N.; Aleksandrov, A.; Anokhina, A.; Aoki, S.; Ariga, A.; Ariga, T.; Asada, T.; Bender, D.; Bertolin, A.; Bozza, C.; Brugnera, R.; Buonaura, A.; Buontempo, S.; Buettner, B.; Chernyavsky, M.; Chukanov, A.; Consiglio, L.; D'Ambrosio, N.; De Lellis, G.; De Serio, M.; Sanchez, P.; Di Crescenzo, A.; Di Ferdinando, D.; Di Marco, N.; Dmitrievski, S.; Dracos, M.; Duchesneau, D.; Dusini, S.; Dzhatdoev, T.; Ebert, J.; Ereditato, A.; Fini, R.; Fukuda, T.; Galati, G.; Garfagnini, A.; Giacomelli, G.; Goellnitz, C.; Goldberg, J.; Gornushkin, Y.; Grella, G.; GÜLER, ALİ; Gustavino, C.; Hagner, C.; Hara, T.; Hayakawa, T.; Hollnagel, A.; Hosseini, B.; Ishida, H.; Ishiguro, K.; Jakovcic, K.; Jollet, C.; Kamiscioglu, ÇAĞIN; Kamiscioglu, M.; Katsuragawa, T.; Kawada, J.; Kawahara, H.; Kim, J.; Kim, S.; Kitagawa, N.; Klicek, B.; Kodama, K.; Komatsu, M.; Kose, U.; Kreslo, I.; Lauria, A.; Lenkeit, J.; Ljubicic, A.; Longhin, A.; Loverre, P.; Malenica, M.; Malgin, A.; Mandrioli, G.; Matsuo, T.; Matveev, V.; Mauri, N.; Medinaceli, E.; Meregaglia, A.; Meyer, M.; Mikado, S.; Miyanishi, M.; Monacelli, P.; Montesi, M.; Morishima, K.; Muciaccia, M.; Naganawa, N.; Naka, T.; Nakamura, M.; Nakano, T.; Nakatsuka, Y.; Niwa, K.; Ogawa, S.; Okateva, N.; Olshevsky, A.; Omura, T.; Ozaki, K.; Paoloni, A.; Park, B.; Park, I.; Pasqualini, L.; Pastore, A.; Patrizii, L.; Pessard, H.; Pistillo, C.; Podgrudkov, D.; Polukhina, N.; Pozzato, M.; Pupilli, F.; Roda, M.; Roganova, T.; Rokujo, H.; Rosa, G.; Ryazhskaya, O.; Sato, O.; Schembri, A.; Shakiryanova, I.; Shchedrina, T.; Sheshukov, A.; Shibuya, H.; Shiraishi, T.; Shoziyoev, G.; Simone, S.; Sioli, M.; Sirignano, C.; Sirri, G.; Spinetti, M.; Stanco, L.; Starkov, N.; Stellacci, S.; Stipcevic, M.; Strolin, P.; Takahashi, S.; Tenti, M.; Terranova, F.; Tioukov, V.; Tufanli, S.; Umemoto, A.; Vilain, P.; Vladimirov, M.; Votano, L.; Vuilleumier, J.; Wilquet, G.; Wonsak, B.; Yoon, C.; Yaguchi, I.; Yoshimoto, M.; Zemskova, S.; Zghiche, A.

doi:10.1093/ptep/ptu132

Observation of tau neutrino appearance in the CNGS beam with the OPERA experiment

Agafonova N., Aleksandrov A., Anokhina A., Aoki S., Ariga A., Ariga T., ...Daha Fazla

Progress of Theoretical and Experimental Physics, cilt.2014, sa.10, 2014 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 2014 Sayı: 10
Basım Tarihi: 2014
Doi Numarası: 10.1093/ptep/ptu132
Dergi Adı: Progress of Theoretical and Experimental Physics
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Ankara Üniversitesi Adresli: Evet

Özet

© The Author(s) 2014.The OPERA experiment is searching for νμ ν τ oscillations in appearance mode, i.e., via the direct detection of \tau leptons in \nu -\tau charged-current interactions. The evidence of \nu -\mu \rightarrow \nu -\tau appearance has been previously reported with three \nu -\tau candidate events using a sub-sample of data from the 2008-2012 runs. We report here a fourth \nu -\tau candidate event, with the \tau decaying into a hadron, found after adding the 2012 run events without any muon in the final state to the data sample. Given the number of analyzed events and the low background, \nu -\mu \rightarrow \nu -\tau oscillations are established with a significance of 4.2\sigma.