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.

Astier, P., Autiero, D., Baldisseri, A., Baldo Ceolin, M., Ballocchi, G., Banner, M., et al. (2000). Neutrino production of opposite sign dimuons in the NOMAD experiment RID B-6634-2009 RID C-6672-2008. PHYSICS LETTERS. SECTION B, 486(1-2), 35-48 [10.1016/S0370-2693(00)00612-2].

Neutrino production of opposite sign dimuons in the NOMAD experiment RID B-6634-2009 RID C-6672-2008

ORESTANO, DOMIZIA;
2000-01-01

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.
2000
Astier, P., Autiero, D., Baldisseri, A., Baldo Ceolin, M., Ballocchi, G., Banner, M., et al. (2000). Neutrino production of opposite sign dimuons in the NOMAD experiment RID B-6634-2009 RID C-6672-2008. PHYSICS LETTERS. SECTION B, 486(1-2), 35-48 [10.1016/S0370-2693(00)00612-2].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/119933
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