/ Astrophysics


Measurement of the TeV atmospheric muon charge ratio with the complete OPERA data set


Agafonova, N. (Moscow, INR) ; Aleksandrov, A. (INFN, Naples) ; Anokhina, A. (SINP, Moscow) ; Aoki, S. (Kobe U.) ; Ariga, A. (Bern U., LHEP) ; Ariga, T. (Bern U., LHEP) ; Bender, D. (Middle East Tech. U., Ankara) ; Bertolin, A. (INFN, Padua) ; Bozza, C. (Salerno U.) ; Brugnera, R. (Padua U.) ; Buonaura, A. (Naples U.) ; Buontempo, S. (INFN, Naples) ; Büttner, B. (Hamburg U.) ; Chernyavsky, M. (Lebedev Inst.) ; Chukanov, A. (Dubna, JINR) ; Consiglio, L. (INFN, Naples) ; Dambrosio, N. (INFN, Aquila) ; De Lellis, G. (Naples U.) ; De Serio, M. (INFN, Bari) ; Del Amo Sanchez, P. (Annecy, LAPP) ; Di Crescenzo, A. (INFN, Naples) ; Di Ferdinando, D. (INFN, Bologna) ; Di Marco, N. (INFN, Aquila) ; Dmitrievski, S. (Dubna, JINR) ; Dracos, M. (Strasbourg, IPHC) ; Duchesneau, D. (Annecy, LAPP) ; Dusini, S. (INFN, Padua) ; Dzhatdoev, T. (SINP, Moscow) ; Ebert, J. (Hamburg U.) ; Ereditato, A. (Bern U., LHEP) ; Fini, R.A. (INFN, Bari) ; Fukuda, T. (Toho U.) ; Galati, G. (INFN, Bari) ; Garfagnini, A. (Padua U.) ; Giacomelli, G. (Bologna U.) ; Göllnitz, C. (Hamburg U.) ; Goldberg, J. (Technion) ; Gornushkin, Y. (Dubna, JINR) ; Grella, G. (Salerno U.) ; Guler, M. (Middle East Tech. U., Ankara) ; Gustavino, C. (INFN, Rome) ; Hagner, C. (Hamburg U.) ; Hara, T. (Kobe U.) ; Hollnagel, A. (Hamburg U.) ; Hosseini, B. (Naples U.) ; Ishida, H. (Toho U.) ; Ishiguro, K. (Nagoya U.) ; Jakovcic, K. (Boskovic Inst., Zagreb) ; Jollet, C. (Strasbourg, IPHC) ; Kamiscioglu, C. (Middle East Tech. U., Ankara) ; Kamiscioglu, M. (Middle East Tech. U., Ankara) ; Kawada, J. (Bern U., LHEP) ; Kim, J.H. (Gyeongsang Natl. U.) ; Kim, S.H. (Gyeongsang Natl. U.) ; Kitagawa, N. (Nagoya U.) ; Klicek, B. (Boskovic Inst., Zagreb) ; Kodama, K. (Aichi U. of Education) ; Komatsu, M. (Nagoya U.) ; Kose, U. (INFN, Padua) ; Kreslo, I. (Bern U., LHEP) ; Lauria, A. (Naples U.) ; Lenkeit, J. (Hamburg U.) ; Ljubicic, A. (Boskovic Inst., Zagreb) ; Longhin, A. (Frascati) ; Loverre, P. (Rome U.) ; Malgin, A. (Moscow, INR) ; Malenica, M. (Boskovic Inst., Zagreb) ; Mandrioli, G. (INFN, Bologna) ; Matsuo, T. (Toho U.) ; Matveev, V. (Moscow, INR) ; Mauri, N. (Bologna U.) ; Medinaceli, E. (Padua U.) ; Meregaglia, A. (Strasbourg, IPHC) ; Mikado, S. (Nihon U., Narashino) ; Monacelli, P. (INFN, Rome) ; Montesi, M.C. (Naples U.) ; Morishima, K. (Nagoya U.) ; Muciaccia, M.T. (INFN, Bari) ; 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. (Frascati) ; Park, B.D. (Gyeongsang Natl. U.) ; Park, I.G. (Gyeongsang Natl. U.) ; Pasqualini, L. (Bologna U.) ; Pastore, A. (INFN, Bari) ; Patrizii, L. (INFN, Bologna) ; Pessard, H. (Annecy, LAPP) ; Pistillo, C. (Bern U., LHEP) ; Podgrudkov, D. (SINP, Moscow) ; Polukhina, N. (Lebedev Inst.) ; Pozzato, M. (Bologna U.) ; Pupilli, F. (INFN, Aquila) ; Roda, M. (Padua U.) ; Rokujo, H. (Nagoya U.) ; Roganova, T. (SINP, Moscow) ; Rosa, G. (Rome U.) ; Ryazhskaya, O. (Moscow, INR) ; Sato, O. (Nagoya U.) ; Schembri, A. (INFN, Aquila) ; Shakiryanova, I. (Moscow, INR) ; Shchedrina, T. (INFN, Naples) ; Sheshukov, A. (Dubna, JINR) ; Shibuya, H. (Toho U.) ; Shiraishi, T. (Nagoya U.) ; Shoziyoev, G. (SINP, Moscow) ; Simone, S. (INFN, Bari) ; Sioli, M. (Bologna U.) ; Sirignano, C. (Padua U.) ; Sirri, G. (INFN, Bologna) ; Spinetti, M. (Frascati) ; Stanco, L. (INFN, Padua) ; Starkov, N. (Lebedev Inst.) ; Stellacci, S.M. (Salerno U.) ; Stipcevic, M. (Boskovic Inst., Zagreb) ; Strolin, P. (Naples U.) ; Takahashi, S. (Kobe U.) ; Tenti, M. (Bologna U.) ; Terranova, F. (Milan Bicocca U.) ; Tioukov, V. (INFN, Naples) ; Tufanli, S. (Bern U., LHEP) ; Vilain, P. (Brussels U., IIHE) ; Vladimirov, M. (Lebedev Inst.) ; Votano, L. (Frascati) ; Vuilleumier, J.L. (Bern U., LHEP) ; Wilquet, G. (Brussels U., IIHE) ; Wonsak, B. (Hamburg U.) ; Yoon, C.S. (Gyeongsang Natl. U.) ; Zemskova, S. (Dubna, JINR) ; Zghiche, A. (Annecy, LAPP)

Published in: Eur.Phys.J.
Year: 2014
Vol.: C74
Page No: 2933
Pages: 9
Year: 2014

Abstract: The OPERA detector, designed to search for ν μ → ν τ oscillations in the CNGS beam, is located in the underground Gran Sasso laboratory, a privileged location to study TeV-scale cosmic rays. For the analysis here presented, the detector was used to measure the atmospheric muon charge ratio in the TeV region. OPERA collected charge- separated cosmic ray data between 2008 and 2012. More than 3 million atmospheric muon events were detected and reconstructed, among which about 110000 multiple muon bundles. The charge ratio R μ ≡ N μ + / N μ − was measured separately for single and for multiple muon events. The anal- ysis exploited the inversion of the magnet polarity which was performed on purpose during the 2012 Run. The com- bination of the two data sets with opposite magnet polarities allowedminimizingsystematicuncertaintiesandreachingan accurate determination of the muon charge ratio. Data were fittedtoobtainrelevant parametersonthecompositionofpri- mary cosmic rays and the associated kaon production in the forward fragmentation region. In the surface energy range 1–20 TeV investigated by OPERA, R μ is well described by a parametric model including only pion and kaon contribu- tions to the muon flux, showing no significant contribution of the prompt component. The energy independence supports the validity of Feynman scaling in the fragmentation region up to 200 TeV/nucleon primary energy

Web-Page: http://inspirehep.net/record/1313025/files/scoap3-fulltext.pdf?subformat=pdfa

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DOI: 10.1140/epjc/s10052-014-2933-0
 Запись создана 2014-09-02, последняя модификация 2014-10-01


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