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Leading order analysis of neutrino induced dimuon events in the CHORUS experiment

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2008-07-21
Kayis-Topaksu, A.
Onengut, G.
van Dantzig, R.
de Jong, M.
Oldeman, R. G. C.
Güler, Ali Murat
Kama, S.
Kose, U.
Serin-Zeyrek, M.
Tolun, P.
Catanesi, M. G.
Muciaccia, M. T.
Buelte, A.
Winter, K.
de Vyver, B. Van
Vilain, P.
Wilquet, G.
Saitta, B.
Di Capua, E.
Ogawa, S.
Shibuya, H.
Hristova, I. R.
Kawamura, T.
Kolev, D.
Litmaath, M.
Meinhard, H.
Panman, J.
Rozanov, A.
Tsenov, R.
Uiterwijk, J. W. E.
Zucchelli, P.
Goldberg, J.
Chikawa, M.
Song, J. S.
Yoon, C. S.
Kodama, K.
Ushida, N.
Aoki, S.
Hara, T.
Delbar, T.
Favart, D.
Gregoire, G.
Kalinin, S.
Makhlioueva, I.
Artamonov, A.
Gorbunov, P.
Khovansky, V.
Shamanov, V.
Tsukerman, I.
Bruski, N.
Frekers, D.
Rondeshagen, D.
Wolff, T.
Hoshino, K.
Kawada, J.
Komatsu, M.
Miyanishi, A.
Nakamura, M.
Nakano, T.
Narita, K.
Niu, K.
Niwa, K.
Nonaka, N.
Sato, O.
Toshito, T.
Buontempo, S.
Cocco, A. G.
D'Ambrosio, N.
De Lellis, G.
De Rosa, G.
Di Capua, F.
Fiorillo, G.
Marotta, A.
Messina, M.
Migliozzi, P.
Santorelli, R.
Lavina, L. Scotto
Strolin, P.
Tioukov, V.
Okusawa, T.
Dore, U.
Loverre, P. F.
Ludovici, L.
Rosa, G.
Santacesaria, R.
Satta, A.
Spada, F. R.
Barbuto, E.
Bozza, C.
Grella, G.
Romano, G.
Sirignano, C.
Sorrentino, S.
Sato, Y.
Tezuka, I.
We present a leading order QCD analysis of a sample of neutrino induced charged-current events with two muons in the final state originating in the lead-scintillating fibre calorimeter of the CHORUS detector. The results are based on a sample of 8910 neutrino and 430 antineutrino induced opposite-sign dimuon events collected during the exposure of the detector to the CERN Wide Band Neutrino Beam between 1995 and 1998. The analysis yields a value of the charm quark mass of m(c) = (1.26 +/- 0.16 +/- 0.09) GeV/c(2) and a value of the ratio of the strange to non-strange sea in the nucleon Of K = 0.33 +/- 0.05 +/- 0.05, improving the results obtained in similar analyses by previous experiments. (c) 2008 Elsevier B.V. All rights reserved.