Pàgina inicial > Updated constraints on sterile neutrino mixing in the OPERA experiment using a new $\nu_e$ identification method |
Article | |
Report number | arXiv:2211.04636 |
Title | Updated constraints on sterile neutrino mixing in the OPERA experiment using a new $\nu_e$ identification method |
Author(s) |
Agafonova, N. (Moscow, INR) ; Alexandrov, A. (INFN, Naples) ; Anokhina, A. (SINP, Moscow) ; Aoki, S. (Kobe U.) ; Ariga, A. (Bern U., LHEP) ; Ariga, T. (Bern U., LHEP ; Tohwa U.) ; Bertolin, A. (INFN, Padua) ; Bozza, C. (INFN, Salerno ; Salerno U.) ; Brugnera, R. (INFN, Padua) ; Buontempo, S. (INFN, Naples) ; Chernyavskiy, M. (Lebedev Inst.) ; Chukanov, A. (Dubna, JINR) ; Consiglio, L. (INFN, Naples) ; D'Ambrosio, N. (Gran Sasso) ; De Lellis, G. (INFN, Naples ; Naples U. ; CERN) ; De Serio, M. (Bari U. ; INFN, Bari) ; del Amo Sanchez, P. (Annecy, LAPP) ; Di Crescenzo, A. (INFN, Naples ; Naples U.) ; Di Ferdinando, D. (INFN, Bologna) ; Di Marco, N. (Gran Sasso) ; Dmitrievsky, S. (Dubna, JINR) ; Dracos, M. (Strasbourg, IPHC) ; Duchesneau, D. (Annecy, LAPP) ; Dusini, S. (INFN, Padua) ; Dzhatdoev, T. (SINP, Moscow) ; Ebert, J. (U. Hamburg (main)) ; Ereditato, A. (Bern U., LHEP) ; Fini, R.A. (INFN, Bari) ; Fukuda, T. (Nagoya U.) ; Galati, G. (INFN, Naples ; Naples U.) ; Garfagnini, A. (INFN, Padua) ; Gentile, V. (GSSI, Aquila ; Gran Sasso) ; Goldberg, J. (Technion) ; Gorbunov, S. (Lebedev Inst.) ; Gornushkin, Y. (Dubna, JINR) ; Grella, G. (INFN, Salerno ; Salerno U.) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Gustavino, C. (INFN, Rome) ; Hagner, C. (U. Hamburg (main)) ; Hara, T. (Kobe U.) ; Hayakawa, T. (Nagoya U.) ; Hollnagel, A. (U. Hamburg (main)) ; Ishiguro, K. (Nagoya U.) ; Iuliano, A. (INFN, Naples ; Naples U.) ; Jakovčić, K. (Boskovic Inst., Zagreb) ; Jollet, C. (Strasbourg, IPHC) ; Kamiscioglu, C. (Middle East Tech. U., Ankara ; Ankara U.) ; Kamiscioglu, M. (Middle East Tech. U., Ankara) ; Kim, S.H. (Gyeongsang Natl. U.) ; Kitagawa, N. (Nagoya U.) ; Kliček, B. (Boskovic Inst., Zagreb) ; Kodama, K. (Aichi U. of Education) ; Komatsu, M. (Nagoya U.) ; Kose, U. (INFN, Padua) ; Kreslo, I. (Bern U., LHEP) ; Laudisio, F. (INFN, Padua) ; Lauria, A. (INFN, Naples ; Naples U.) ; Longhin, A. (INFN, Padua) ; Loverre, P. (INFN, Rome) ; Malgin, A. (Moscow, INR) ; Mandrioli, G. (INFN, Bologna) ; Matsuo, T. (Toho U.) ; Matveev, V. (Moscow, INR) ; Mauri, N. (INFN, Bologna ; U. Bologna, DIFA) ; Medinaceli, E. (INFN, Padua) ; Meregaglia, A. (Strasbourg, IPHC) ; Mikado, S. (Nihon U., Narashino) ; Miyanishi, M. (Nagoya U.) ; Mizutani, F. (Kobe U.) ; Monacelli, P. (INFN, Rome) ; Montesi, M.C. (INFN, Naples ; Naples U.) ; Morishima, K. (Nagoya U.) ; Muciaccia, M.T. (Bari U. ; INFN, Bari) ; Naganawa, N. (Nagoya U.) ; Naka, T. (Toho U.) ; Nakamura, M. (Nagoya U.) ; Nakano, T. (Nagoya U.) ; Niwa, K. (Nagoya U.) ; Ogawa, S. (Toho U.) ; Okateva, N. (Lebedev Inst.) ; Ozaki, K. (Kobe U.) ; Paoloni, A. (Frascati) ; Paparella, L. (Bari U. ; INFN, Bari) ; Park, B.D. (Gyeongsang Natl. U.) ; Pasqualini, L. (INFN, Bologna ; U. Bologna, DIFA) ; Pastore, A. (INFN, Bari) ; Patrizii, L. (INFN, Bologna) ; Pessard, H. (Annecy, LAPP) ; Podgrudkov, D. (SINP, Moscow) ; Polukhina, N. (Lebedev Inst. ; Moscow Phys. Eng. Inst.) ; Pozzato, M. (INFN, Bologna) ; Pupilli, F. (INFN, Padua) ; Rodak, M. (INFN, Padua) ; Roganova, T. (SINP, Moscow) ; Rokujo, H. (Nagoya U.) ; Rosa, G. (INFN, Rome) ; Ryazhskaya, O. (Moscow, INR) ; Sato, O. (Nagoya U.) ; Schembri, A. (Gran Sasso) ; Shakiryanova, I. (Moscow, INR) ; Shchedrina, T. (Lebedev Inst.) ; Shibayama, E. (Kobe U.) ; Shibuya, H. (Toho U.) ; Shiraishi, T. (Nagoya U.) ; Simone, S. (Bari U. ; INFN, Bari) ; Sirignano, C. (INFN, Padua) ; Sirri, G. (INFN, Bologna) ; Sotnikov, A. (Dubna, JINR) ; Spinetti, M. (Frascati) ; Stanco, L. (INFN, Padua) ; Starkov, N. (Lebedev Inst.) ; Stellacci, S.M. (INFN, Salerno ; Salerno U.) ; Stipčević, M. (Boskovic Inst., Zagreb) ; Strolin, P. (INFN, Naples ; Naples U.) ; Takahashi, S. (Kobe U.) ; Tenti, M. (INFN, Bologna) ; Terranova, F. (Milan Bicocca U.) ; Tioukov, V. (INFN, Naples) ; Tufanli, S. (Bern U., LHEP) ; Vasina, S. (Dubna, JINR) ; Vilain, P. (Brussels U., IIHE) ; Voevodina, E. (INFN, Naples) ; Votano, L. (Frascati) ; Vuilleumier, J.L. (Bern U., LHEP) ; Wilquet, G. (Brussels U., IIHE) ; Yoon, C.S. (Gyeongsang Natl. U.) |
Publication | 2023-03-09 |
Imprint | 2022-11-08 |
Number of pages | 13 |
Note | 13 pages, 6 figures |
In: | PTEP 2023 (2023) 033C01 |
DOI | 10.1093/ptep/ptad012 |
Subject category | hep-ex ; Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN SPS ; OPERA CNGS1 |
Abstract | This paper describes a new $\nu_e$ identification method specifically designed to improve the low-energy ($< 30\,\mathrm{GeV}$) $\nu_e$ identification efficiency attained by enlarging the emulsion film scanning volume with the next generation emulsion readout system. A relative increase of 25-70% in the $\nu_e$ low-energy region is expected, leading to improvements in the OPERA sensitivity to neutrino oscillations in the framework of the 3 + 1 model. The method is applied to a subset of data where the detection efficiency increase is expected to be more relevant, and one additional $\nu_e$ candidate is found. The analysis combined with the $\nu_\tau$ appearance results improves the upper limit on $\sin^2 2\theta_{\mu e}$ to 0.016 at 90% C.L. in the MiniBooNE allowed region $\Delta m^2_{41} \sim 0.3\,\mathrm{eV}^2$. |
Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2023-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³ |