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Procedure for short-lived particle detection in the OPERA experiment and its application to charm decays

  • N. Agafonova
  • , A. Aleksandrov
  • , A. Anokhina
  • , S. Aoki
  • , A. Ariga
  • , T. Ariga
  • , D. Bender
  • , A. Bertolin
  • , C. Bozza
  • , R. Brugnera
  • , A. Buonaura
  • , S. Buontempo
  • , B. Büttner
  • , M. Chernyavsky
  • , A. Chukanov
  • , L. Consiglio
  • , N. D’Ambrosio
  • , G. De Lellis
  • , M. De Serio
  • , P. Del Amo Sanchez
  • A. Di Crescenzo, D. Di Ferdinando, N. Di Marco, S. Dmitrievski, M. Dracos, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, A. Ereditato, R. A. Fini, T. Fukuda, G. Galati, A. Garfagnini, G. Giacomelli, C. Göllnitz, J. Goldberg, Y. Gornushkin, G. Grella, M. Guler, C. Gustavino, C. Hagner, T. Hara, A. Hollnagel, B. Hosseini, H. Ishida, K. Ishiguro, K. Jakovcic, C. Jollet, C. Kamiscioglu, M. Kamiscioglu, J. Kawada, J. H. Kim, S. H. Kim, N. Kitagawa, B. Klicek, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, A. Lauria, J. Lenkeit, A. Ljubicic, A. Longhin, P. Loverre, A. Malgin, M. Malenica, G. Mandrioli, T. Matsuo, V. Matveev, N. Mauri, E. Medinaceli, A. Meregaglia, S. Mikado, P. Monacelli, M. C. Montesi, K. Morishima, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, Y. Nakatsuka, K. Niwa, S. Ogawa, N. Okateva, A. Olshevsky, T. Omura, K. Ozaki, A. Paoloni, B. D. Park, I. G. Park, L. Pasqualini, A. Pastore, L. Patrizii, H. Pessard, C. Pistillo, D. Podgrudkov, N. Polukhina, M. Pozzato, F. Pupilli, M. Roda, H. Rokujo, T. Roganova, G. Rosa, O. Ryazhskaya, O. Sato, A. Schembri, I. Shakiryanova, T. Shchedrina, A. Sheshukov, H. Shibuya, T. Shiraishi, G. Shoziyoev, S. Simone, M. Sioli, C. Sirignano, G. Sirri, M. Spinetti, L. Stanco, N. Starkov, S. M. Stellacci, M. Stipcevic, T. Strauss, P. Strolin, S. Takahashi, M. Tenti, F. Terranova, V. Tioukov, S. Tufanli, P. Vilain, M. Vladimirov, L. Votano, J. L. Vuilleumier, G. Wilquet, B. Wonsak, C. S. Yoon, S. Zemskova, A. Zghiche
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • INFN Sezione di Napoli
  • Moscow State University
  • Kobe University
  • University of Bern
  • Middle East Technical University (METU)
  • INFN
  • University of Salerno
  • University of Padova
  • University of Naples Federico II
  • Universität Hamburg
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Joint Institute for Nuclear Research, Dubna
  • Laboratori Nazionali del Gran Sasso
  • Università degli studi di Bari Aldo Moro
  • INFN Sezione di Bari
  • Université Savoie Mont Blanc
  • INFN Sezione di Bologna
  • Université de Strasbourg
  • Toho University
  • University of Bologna
  • Technion - Israel Institute of Technology
  • Sezione di Roma
  • Nagoya University
  • Ruđer Bošković Institute
  • Gyeongsang National University
  • Kyungpook National University
  • Aichi University of Education
  • LNF-INFN
  • Dipartimento di Fisica
  • Nihon University
  • Sungkyunkwan University
  • University of Milano-Bicocca
  • Université Libre de Bruxelles

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

Résumé

The OPERA experiment, designed to perform the first observation of (Formula Presented) oscillations in appearance mode through the detection of the τ leptons produced in ντ charged current interactions, has collected data from 2008 to 2012. In the present paper, the procedure developed to detect τ 1~ from the neutrino interaction point, is described in detail and applied to the search for charmed hadrons, showing similar decay topologies as the τ lepton. In the analysed sample, 50 charm decay candidate events are observed while 54 ±4 are expected, proving that the detector performance and the analysis chain applied to neutrino events are well reproduced by the OPERA simulation and thus validating the methods for ντ appearance detection.

langue originaleAnglais
Numéro d'article2986
Pages (de - à)1-9
Nombre de pages9
journalEuropean Physical Journal C
Volume74
Numéro de publication8
Les DOIs
étatPublié - 1 août 2014
Modification externeOui

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