The NOMAD Collaboration presents a study of opposite sign dimuon events in the framework of Leading Order QCD. A total of 2714 neutrino- and 115 antineutrino-induced opposite sign dimuon events with E-mu 1, E-mu 2 > 4.5 GeV, 15 < E-nu < 300 GeV and Q(2) > 1 (GeV/c)(2) are observed in the Front-Calorimeter of NOMAD during the 1995 and 1996 runs. The analysis yields a value for the charm quark mass of m(c) = 1.3(-0.3-0.3)(+0.3+0.3) GeV/c(2) and fur the average semileptonic branching ratio of B-c = 0.095(-0.007-0.013)(+0.007+0.014). The ratio of the strange to non-strange sea in the nucleon is measured to be kappa = 0.48(-0.07-0.12)(+0.09+0.17). The measured rate of charm-induced dimuon relative to single muon, as a function of neutrino energy, is consistent with the slow rescaling hypothesis of heavy quark production. (C) 2000 Published by Elsevier Science B.V. RI Vercesi, Valerio/C-6672-2008; Collazuol, Gianmaria/C-5670-2012; Soler, Paul/E-8464-2011; Moorhead, Gareth/B-6634-2009

Neutrino production of opposite sign dimuons in the NOMAD experiment

CAVASINNI, VINCENZO;RODA, CHIARA MARIA ANGELA;
2000

Abstract

The NOMAD Collaboration presents a study of opposite sign dimuon events in the framework of Leading Order QCD. A total of 2714 neutrino- and 115 antineutrino-induced opposite sign dimuon events with E-mu 1, E-mu 2 > 4.5 GeV, 15 < E-nu < 300 GeV and Q(2) > 1 (GeV/c)(2) are observed in the Front-Calorimeter of NOMAD during the 1995 and 1996 runs. The analysis yields a value for the charm quark mass of m(c) = 1.3(-0.3-0.3)(+0.3+0.3) GeV/c(2) and fur the average semileptonic branching ratio of B-c = 0.095(-0.007-0.013)(+0.007+0.014). The ratio of the strange to non-strange sea in the nucleon is measured to be kappa = 0.48(-0.07-0.12)(+0.09+0.17). The measured rate of charm-induced dimuon relative to single muon, as a function of neutrino energy, is consistent with the slow rescaling hypothesis of heavy quark production. (C) 2000 Published by Elsevier Science B.V. RI Vercesi, Valerio/C-6672-2008; Collazuol, Gianmaria/C-5670-2012; Soler, Paul/E-8464-2011; Moorhead, Gareth/B-6634-2009
Astier, P; Autiero, D; Baldisseri, A; Baldo Ceolin, M; Ballocchi, G; Banner, M; Bassompierre, G; Benslama, K; Besson, N; Bird, I; Blumenfeld, B; Bobisut, F; Bouchez, J; Boyd, S; Bueno, A; Bunyatov, S; Camilleri, L; Cardini, A; Cattaneo, Pw; Cavasinni, Vincenzo; Cervera Villanueva, A; Collazuol, Gm; Conforto, G; Conta, C; Contalbrigo, M; Cousins, R; Daniels, D; Degaudenzi, H; De Santo, A; Del Prete, T; Dignan, T; Di Lella, L; Silva, Ed; Dumarchez, J; Ellis, M; Fazio, T; Feldman, Gj; Ferrari, R; Ferrere, D; Flaminio, V; Fraternali, M; Gaillard, Jm; Gangler, E; Geiser, A; Geppert, D; Gibin, D; Gninenko, S; Godley, A; Gomez Ccdeenas, Jj; Gosset, J; Gossling, C; Gouanere, M; Grant, A; Graziani, G; Cuglielmi, A; Hagner, C; Hernando, J; Hubbard, D; Hurst, P; Hyett, N; Iacopini, E; Joseph, C; Juget, F; Kirsanov, M; Klimov, O; Kokkonen, J; Kovzelev, A; Krasnoperov, A; Kuznetsov, V; Lacaprara, S; Lakic, B; Lanza, A; La Rotonda, L; Laveder, M; Letessier Selvon, A; Levy, Jm; Linssen, L; Ljubicic, A; Long, J; Lupi, A; Manola Poggioli, E; Marchionni, A; Martelli, F; Mechain, X; Mendiburu, Jp; Meyer, Jp; Mezzetto, M; Mishra, Sr; Moorhead, Gf; Mossuz, L; Nedelec, P; Nefedov, Y; Nguyen Mau, C; Orestano, D; Pastore, F; Peak, Ls; Pennacchio, E; Pessard, H; Petti, R; Placci, A; Pluquet, A; Polesello, G; Pollmann, D; Polyarush, A; Popov, B; Poulsen, C; Rathouit, P; Roda, CHIARA MARIA ANGELA; Rubbia, A; Salvatore, F; Schahmaneche, K; Schmidt, B; Schmidt, T; Sevior, Me; Sillou, D; Soler, Fjp; Sozzi, G; Steele, D; Steininger, M; Stiegler, U; Stipcevic, M; Stolarczyk, T; Tareb Reyes, M; Taylor, Gn; Tereshchenko, S; Toropin, A; Touchard, Am; Tovey, Sn; Tran, Mt; Tsesmelis, E; Ulrichs, J; Vacavant, L; Valdata Nappi, M; Valuev, V; Vannucci, F; Varvell, Ke; Veltri, M; Vercesi, V; Verkindt, D; Vieira, Jm; Vinogradova, T; Vo, Mk; Weber, F; Weisse, T; Wilson, F; Winton, Lj; Yabsley, Bd; Zaccone, H; Zuber, K; Zuccon, P.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/189814
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