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

N. Agafonova , A. Anokhina , S. Aoki , A. Ariga , T. Ariga , D. Bender , A. Bertolin , C. Bozza

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R. Brugnera A. Buonaura S. Buontempo B. Buttner 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. Gollnitz 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

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classification ✦ hep-ex

keywords detectionappearanceapplicationdecaysexperimentoperaparticleprocedure

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The OPERA experiment, designed to perform the first observation of $\nu_\mu \rightarrow \nu_\tau$ oscillations in appearance mode through the detection of the $\tau$ leptons produced in $\nu_\tau$ charged current interactions, has collected data from 2008 to 2012. In the present paper, the procedure developed to detect $\tau$ particle decays, occurring over distances of the order of 1 mm from the neutrino interaction point, is described in detail. The results of its application to the search for charmed hadrons are then presented as a validation of the methods for $\nu_\tau$ appearance detection.

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

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