/ hep-ex arXiv:1308.2553


New results on $\nu_\mu \to \nu_\tau$ appearance with the OPERA experiment in the CNGS beam


Agafonova, N. (Moscow, INR) ; Aleksandrov, A. (INFN, Naples) ; Anokhina, A. (Moscow State U.) ; Aoki, S. (Kobe U.) ; Ariga, A. (Bern U.) ; Ariga, T. (Bern U.) ; Asada, T. (Nagoya U.) ; Autiero, D. (Lyon, IPN) ; Badertscher, A. (Zurich, ETH) ; Dhahbi, A.Ben (Bern U.) ; Bender, D. (Middle East Tech. U., Ankara) ; Bertolin, A. (INFN, Padua) ; Bozza, C. (INFN, Salerno) ; Brugnera, R. (INFN, Padua) ; Brunetti, G. (Bern U.) ; Buttner, B. (Hamburg U., Inst. Theor. Phys. II) ; Buontempo, S. (INFN, Naples) ; Chaussard, L. (Lyon, IPN) ; Chernyavskiy, M. (Lebedev Inst.) ; Chiarella, V. (INFN, Rome) ; Chukanov, A. (Dubna, JINR) ; Consiglio, L. (INFN, Naples) ; D'Ambrosio, N. (Gran Sasso) ; del Amo Sanchez, P. (Annecy, LAPP) ; De Lellis, G. (INFN, Naples) ; De Serio, M. (INFN, Bari) ; Di Crescenzo, A. (INFN, Naples) ; Di Ferdinando, D. (INFN, Bologna) ; Di Marco, N. (Gran Sasso) ; Dmitrievski, S. (Dubna, JINR) ; Dracos, M. (Louis Pasteur U., Strasbourg I) ; Duchesneau, D. (Annecy, LAPP) ; Dusini, S. (INFN, Padua) ; Ebert, J. (Hamburg U., Inst. Theor. Phys. II) ; Ereditato, A. (Bern U.) ; Favier, J. (Annecy, LAPP) ; Ferber, T. (Hamburg U.) ; Fini, R.A. (INFN, Bari) ; Fukuda, T. (Toho U.) ; Garfagnini, A. (INFN, Padua) ; Giacomelli, G. (Bologna U.) ; Goellnitz, C. (Hamburg U., Inst. Theor. Phys. II) ; Goldberg, J. (Technion) ; Gornushkin, Y. (Dubna, JINR) ; Grella, G. (INFN, Salerno) ; Grianti, F. (INFN, Rome) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Gustavino, C. (Boskovic Inst., Zagreb) ; Hagner, C. (Hamburg U., Inst. Theor. Phys. II) ; Hakamata, K. (Nagoya U.) ; Hara, T. (Kobe U.) ; Hayakawa, T. (Nagoya U.) ; Hierholzer, M. (Hamburg U.) ; Hollnagel, A. (Hamburg U.) ; Hosseini, B. (INFN, Naples) ; Ishida, H. (Toho U.) ; Ishiguro, K. (Nagoya U.) ; Ishikawa, M. (Nagoya U.) ; Jakovcic, K. (Boskovic Inst., Zagreb) ; Jollet, C. (Louis Pasteur U., Strasbourg I) ; Kamiscioglu, C. (Middle East Tech. U., Ankara) ; Kamiscioglu, M. (Middle East Tech. U., Ankara) ; Katsuragawa, T. (Nagoya U.) ; Kawahara, H. (Nagoya U.) ; Kawada, J. (Bern U.) ; Kim, J.H. (Gyeongsang Natl. U.) ; Kimura, S.H. Kim\author M. (Bern U.) ; Kitagawa, N. (Nagoya U.) ; Klicek, B. (Boskovic Inst., Zagreb) ; Kodama, K. (Aichi U.) ; Komatsu, M. (Nagoya U.) ; Kose, U. (INFN, Padua) ; Kreslo, I. (Bern U.) ; Lauria, A. (INFN, Naples) ; Lenkeit, J. (Hamburg U., Inst. Theor. Phys. II) ; Ljubicic, A. (Boskovic Inst., Zagreb) ; Longhin, A. (INFN, Rome) ; Loverre, P. (Rome U.) ; Malgin, A. (Moscow, INR) ; Mandrioli, G. (INFN, Bologna) ; Marteau, J. (Lyon, IPN) ; Matsuo, T. (Toho U.) ; Matveev, V. (Moscow, INR) ; Mauri, N. (INFN, Bologna) ; Medinaceli, E. (Padua U.) ; Meregaglia, A. (Louis Pasteur U., Strasbourg I) ; Migliozzi, P. (INFN, Naples) ; Mikado, S. (Toho U.) ; Minotti, A. (INFN, Rome) ; Miyanishi, M. (Nagoya U.) ; Miyashita, E. (Nagoya U.) ; Monacelli, P. (INFN, Aquila) ; Montesi, M.C. (Naples U.) ; Morishima, K. (Nagoya U.) ; Muciaccia, M.T. (Bari U.) ; Naganawa, N. (Nagoya U.) ; Naka, T. (Nagoya U.) ; Nakamura, M. (Nagoya U.) ; Nakano, T. (Nagoya U.) ; Nakatsuka, Y. (Nagoya U.) ; Niwa, K. (Nagoya U.) ; Ogawa, S. (Toho U.) ; Okateva, N. (Lebedev Inst.) ; Olshevsky, A. (Dubna, JINR) ; Omura, T. (Nagoya U.) ; Ozaki, K. (Kobe U.) ; Paoloni, A. (INFN, Rome) ; Park, B.D. (Gyeongsang Natl. U.) ; Park, I.G. (Gyeongsang Natl. U.) ; Pastore, A. (INFN, Bari) ; Patrizii, L. (INFN, Bologna) ; Pennacchio, E. (Lyon, IPN) ; Pessard, H. (Annecy, LAPP) ; Pistillo, C. (Bern U.) ; Podgrudkov, D. (Moscow State U.) ; Polukhina, N. (Lebedev Inst.) ; Pozzato, M. (INFN, Bologna) ; Pretzl, K. (Bern U.) ; Pupilli, F. (INFN, Aquila) ; Rescigno, R. (INFN, Salerno) ; Roda, M. (INFN, Padua) ; Roganova, T. (Moscow State U.) ; Rokujo, H. (Nagoya U.) ; Rosa, G. (Boskovic Inst., Zagreb) ; Rostovtseva, I. (Moscow, ITEP) ; Rubbia, A. (Zurich, ETH) ; Russo, A. (INFN, Naples) ; Ryazhskaya, O. (Moscow, INR) ; Sato, O. (Nagoya U.) ; Sato, Y. (Utsunomiya U.) ; Schembri, A. (Gran Sasso) ; Schmidt-Parzefall, W. (Hamburg U., Inst. Theor. Phys. II) ; Shakiryanova, I. (Moscow, INR) ; Schcedrina, T. (INFN, Naples) ; Sheshukov, A. (Dubna, JINR) ; Shibuya, H. (Toho U.) ; Shiraishi, T. (Nagoya U.) ; Shoziyoev, G. (Moscow State U.) ; Simone, S. (Bari U.) ; Sioli, M. (INFN, Bologna) ; Sirignano, C. (Padua U.) ; Sirri, G. (INFN, Bologna) ; Spinetti, M. (INFN, Rome) ; Stanco, L. (INFN, Padua) ; Starkov, N. (Lebedev Inst.) ; Stellacci, S.M. (INFN, Salerno) ; Stipcevic, M. (Boskovic Inst., Zagreb) ; Strauss, T. (Bern U.) ; Strolin, P. (Naples U.) ; Suzuki, K. (Nagoya U.) ; Takahashi, S. (Kobe U.) ; Tenti, M. (INFN, Bologna) ; Terranova, F. (Milan U.) ; Tioukov, V. (INFN, Naples) ; Tolun, P. (Middle East Tech. U., Ankara) ; Tufanli, S. (Bern U.) ; Vilain, P. (Brussels U.) ; Vladimirov, M. (Lebedev Inst.) ; Votano, L. (INFN, Rome) ; Vuilleumier, J.L. (Bern U.) ; Wilquet, G. (Brussels U.) ; Wonsak, B. (Hamburg U., Inst. Theor. Phys. II) ; Yoon, C.S. (Gyeongsang Natl. U.) ; Yoshida, J. (Nagoya U.) ; Yoshimoto, M. (Nagoya U.) ; Zaitsev, Y. (Moscow, ITEP) ; Zemskova, S. (Dubna, JINR) ; Zghiche, A. (Annecy, LAPP)

Published in: JHEP / Erratum-ibid.
Year: 2013 / 2014
Vol.: 1311 / 1404
Page No: 036 / 014
Pages: 32
Year: 2013

Abstract: The OPERA neutrino experiment is designed to perform the first observation of neutrino oscillations in direct appearance mode in the $\nu_\mu \to \nu_\tau$ channel, via the detection of the $\tau$-leptons created in charged current $\nu_\tau$ interactions. The detector, located in the underground Gran Sasso Laboratory, consists of an emulsion/lead target with an average mass of about 1.2 kt, complemented by electronic detectors. It is exposed to the CERN Neutrinos to Gran Sasso beam, with a baseline of 730 km and a mean energy of 17 GeV. The observation of the first $\nu_\tau$ candidate event and the analysis of the 2008-2009 neutrino sample have been reported in previous publications. This work describes substantial improvements in the analysis and in the evaluation of the detection efficiencies and backgrounds using new simulation tools. The analysis is extended to a sub-sample of 2010 and 2011 data, resulting from an electronic detector-based pre-selection, in which an additional $\nu_\tau$ candidate has been observed. The significance of the two events in terms of a $\nu_\mu \to \nu_\tau$ oscillation signal is of 2.40 $\sigma$.

Keyword(s): Oscillation ; Neutrino Detectors and Telescopes

Web-Page: http://inspirehep.net/record/1247457/files/figs_fig1.png; http://inspirehep.net/record/1247457/files/figs_fig10.png; http://inspirehep.net/record/1247457/files/figs_fig11.png; http://inspirehep.net/record/1247457/files/figs_fig12a.png; http://inspirehep.net/record/1247457/files/figs_fig12b.png; http://inspirehep.net/record/1247457/files/figs_fig2a.png; http://inspirehep.net/record/1247457/files/figs_fig2b.png; http://inspirehep.net/record/1247457/files/figs_fig3.png; http://inspirehep.net/record/1247457/files/figs_fig4.png; http://inspirehep.net/record/1247457/files/figs_fig5a.png; http://inspirehep.net/record/1247457/files/figs_fig5b.png; http://inspirehep.net/record/1247457/files/figs_fig6.png; http://inspirehep.net/record/1247457/files/figs_fig7.png; http://inspirehep.net/record/1247457/files/figs_fig8.png; http://inspirehep.net/record/1247457/files/figs_fig9.png; http://inspirehep.net/record/1247457/files/arXiv:1308.2553.pdf; http://inspirehep.net/record/1247457/files/scoap3-fulltext.pdf?subformat=pdfa


Note: 33 pages, 12 figures, 5 tables. Prepared for submission to JHEP

Total numbers of views: 2349
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DOI: 10.1007/JHEP11(2013)036
10.1007/JHEP04(2014)014
 Запись создана 2013-09-05, последняя модификация 2014-08-01


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