First observation of a tau neutrino charged current interaction with charm production in the OPERA experiment (CROSBI ID 292660)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Agafonova, N. ; Aleksandrov, A. ; Anokhina, A. ; Aoki, S. ; Ariga, A. ; Ariga, T. ; Bertolin, A. ; Bozza, C. ; Brugnera, R. ; Buonaura, A. ; Buontempo, S. ; Chernyavskiy, M. ; Chukanov, A. ; Consiglio, L. ; D’Ambrosio, N. ; De Lellis, G. ; De Serio, M. ; del Amo 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. A. ; Fornari, F. ; Fukuda, T. ; Galati, G. ; Garfagnini, A. ; Gentile, V. ; Goldberg, J. ; Gorbunov, S. ; Gornushkin, Y. ; Grella, G. ; Guler, A. M. ; Gustavino, C. ; Hagner, C. ; Hara, T. ; Hayakawa, T. ; Hollnagel, A. ; Ishiguro, K. ; Iuliano, A. ; Jakovčić, Krešimir ; Jollet, C. ; Kamiscioglu, C. ; Kamiscioglu, M. ; Kim, S. H. ; Kitagawa, N. ; Kliček, Budimir ; Kodama, K. ; Komatsu, M. ; Kose, U. ; Kreslo, I. ; Laudisio, F. ; Lauria, A. ; Longhin, A. ; Loverre, P. ; Malgin, A. ; Malenica, Marko ; Mandrioli, G. ; Matsuo, T. ; Matveev, V. ; Mauri, N. ; Medinaceli, E. ; Meregaglia, A. ; Mikado, S. ; Miyanishi, M. ; Mizutani, F. ; Monacelli, P. ; Montesi, M. C. ; Morishima, K. ; Muciaccia, M. T. ; Naganawa, N. ; Naka, T. ; Nakamura, M. ; Nakano, T. ; Niwa, K. ; Okateva, N. ; Ogawa, S. ; Ozaki, K. ; Paoloni, A. ; Paparella, L. ; Park, B. D. ; Pasqualini, L. ; Pastore, A. ; Patrizii, L. ; Pessard, H. ; Podgrudkov, D. ; Polukhina, N. ; Pozzato, M. ; Pupilli, F. ; Roda, M. ; Roganova, T. ; Rokujo, H. ; Rosa, G. ; Ryazhskaya, O. ; Sato, O. ; Schembri, A. ; Shakirianova, I. ; Shchedrina, T. ; Shibuya, H. ; Shibayama, E. ; Shiraishi, T. ; Simone, S. ; Sirignano, C. ; Sirri, G. ; Sotnikov, A. ; Spinetti, M. ; Stanco, L. ; Starkov, N. ; Stellacci, S. M. ; Stipčević, Mario ; Strolin, P. ; Takahashi, S. ; Tenti, M. ; Terranova, F. ; Tioukov, V. ; Vasina, S. ; Vilain, P. ; Voevodina, E. ; Votano, L. ; Vuilleumier, J. L. ; Wilquet, G. ; Yoon, C. S.
OPERA Collaboration
engleski
First observation of a tau neutrino charged current interaction with charm production in the OPERA experiment
An event topology with two secondary vertices compatible with the decay of short-lived particles was found in the analysis of neutrino interactions in the OPERA target. The observed topology is compatible with tau neutrino charged current (CC) interactions with charm production and neutrino neutral current (NC) interactions with cc pair production. However, other processes can mimic this topology. A dedicated analysis was implemented to identify the underlying process. A Monte Carlo simulation was developed and complementary procedures were introduced in the kinematic reconstruction. A multivariate analysis technique was used to achieve an optimal separation of signal from background. Most likely, this event is a ντ CC interaction with charm production, the tau and charm particle decaying into 1 prong and 2 prongs, respectively. The significance of this observation is evaluated.
tau neutrino ; charmed particle ; nuclear emulsions
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
80
2020.
699
10
objavljeno
1434-6044
1434-6052
10.1140/epjc/s10052-020-8160-y
Povezanost rada
Fizika
