Neutrino production of opposite sign dimuons in the NOMAD experiment

P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, G. Ballocchi, M. Banner, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. Cardini, P. W. Cattaneo, V. CavasinniA. Cervera-Villanueva, G. M. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, H. Degaudenzi, A. de Santo, T. Del Prete, T. Dignan, L. di Lella, E. do Couto e Silva, J. Dumarchez, M. Ellis, T. Fazio, G. J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J. M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S. Gninenko, A. Godley, J. J. Gomez-Cadenas, J. Gosset, C. Göbling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, M. Kirsanov, O. Klimov, J. Kokkonen, A. Kovzelev, A. Krasnoperov, V. Kuznetsov, S. Lacaprara, B. Lakic, A. Lanza, L. la Rotonda, M. Laveder, A. Letessier-Selvon, J. M. Levy, L. Linssen, A. Ljubičić, J. Long, A. Lupi, E. Manola-Poggioli, A. Marchionni, F. Martelli, X. Méchain, J. P. Mendiburu, J. P. Meyer, M. Mezzetto, S. R. Mishra, G. F. Moorhead, L. Mossuz, P. Nédélec, Y. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L. S. Peak, E. Pennacchio, H. Pessard, R. Petti, A. Placci, A. Pluquet, G. Polesello, D. Pollmann, A. Polyarush, B. Popov, C. Poulsen, P. Rathouit, C. Roda, A. Rubbia, F. Salvatore, K. Schahmaneche, B. Schmidt, T. Schmidt, M. E. Sevior, D. Sillou, F. J.P. Soler, G. Sozzi, D. Steele, M. Steininger, U. Stiegler, M. Stipčević, T. Stolarczyk, M. Tareb-Reyes, G. N. Taylor, S. Tereshchenko, A. Toropin, A. M. Touchard, S. N. Tovey, M. T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K. E. Varvell, M. Veltri, V. Vercesi, D. Verkindt, J. M. Vieira, T. Vinogradova, M. K. Vo, F. Weber, T. Weisse, F. Wilson, L. J. Winton, B. D. Yabsley, H. Zaccone, K. Zuber, P. Zuccon

Research output: Contribution to journalArticle

44 Scopus citations

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(μ1),E(μ2) > 4.5 GeV, 15 < E(ν) < 300 GeV and Q2 > 1 (GeV/c)2 are observed in the Front-Calorimeter of NOMAD during the 1995 and 1996 runs. The analysis and for the average semileptonic branching ratio of yields a value for the charm quark mass of m(c)=1.3-0.3-0.3/+0.3+0.3 GeV/c2 and for 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 κ = 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.

Original languageEnglish (US)
Pages (from-to)35-48
Number of pages14
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume486
Issue number1-2
DOIs
StatePublished - Jul 27 2000
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    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, P. W., ... Zuccon, P. (2000). Neutrino production of opposite sign dimuons in the NOMAD experiment. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 486(1-2), 35-48. https://doi.org/10.1016/S0370-2693(00)00612-2