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Neutrino production of opposite sign dimuons in the NOMAD experiment

Astier, P. et al. (2000) Neutrino production of opposite sign dimuons in the NOMAD experiment. Physics Letters B, 486 (1-2). 35 -48. ISSN 0370-2693 (doi:10.1016/S0370-2693(00)00612-2)

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Publisher's URL: http://dx.doi.org/10.1016/S0370-2693(00)00612-2

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/sub mu 1/,E/sub mu 2/ gt 4.5 GeV, 15 lt E/sub nu / lt 300 GeV and Q/sup 2/ gt 1 (GeV/c)/sup 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/sub c/=1.3/sub -0.3-0.3//sup +0.3+0.3/ GeV/c/sup 2/ and for the average semileptonic branching ratio of B/sub c/=0.095/sub -0.007-0.013//sup +0.007+0.014/. The ratio of the strange to non-strange sea in the nucleon is measured to be kappa =0.48/sub -0.07-0.12//sup +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.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Soler, Prof Paul
Authors: 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., Cavasinni, V., Cervera-Villanueva, A., Collazuol, G.M., Conforto, G., Conta, C., Contalbrigo, M., Cousins, R., Daniels, D., Degaudenzi, H., De Santo, A., Del Prete, T., Dignan, T., Di Lella, L., do Couto e Silva, E., Dumarchez, J., Ellis, M., Fazio, T., Feldman, G.J., Ferrari, R., Ferrere, D., Flaminio, V., Fraternali, M., Gaillard, J.M., Gangler, E., Geiser, A., Geppert, D., Gibin, D., Gninenko, S., Godley, A., Gomez-Cadenas, J.J., Gosset, J., Gossling, C., Gouanre, M., Grant, A., Graziani, G., Guglielmi, 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, J.M., Linssen, L., Ljubicic, A., Long, J., Lupi, A., Manola-Poggioli, E., Marchionni, A., Martelli, F., Mechain, X., Mendiburu, J.P., Meyer, J.P., Mezzetto, M., Mishra, S.R., Moorhead, G.F., Mossuz, L., Nedelec, P., Nefedov, Y., Nguyen-Mau, C., Orestano, D., Pastore, F., Peak, L.S., Pennacchio, E., Pessard, H., Petti, R., Placci, A., Pluquet, A., Polesello, G., Pollmann, D., Polyarush, A., Popov, B., Poulsen, C., Rathouit, P., Roda, C., Rubbia, A., Salvatore, F., Schahmaneche, K., Schmidt, B., Schmidt, T., Sevior, M.E., Sillou, D., Soler, F.J.P., Sozzi, G., Steele, D., Steininger, M., Stiegler, U., Stipcevic, M., Stolarczyk, T., Tareb-Reyes, M., Taylor, G.N., Tereshchenko, S., Toropin, A., Touchard, A.M., Tovey, S.N., Tran, M.T., Tsesmelis, E., Ulrichs, J., Vacavant, L., Valdata-Nappi, M., Valuev, V., Vannucci, F., Varvell, K.E., Veltri, M., Vercesi, V., Verkindt, D., Vieira, J.M., Vinogradova, T., Vo, M.K., Weber, F., Weisse, T., Wilson, F., Winton, L.J., Yabsley, B.D., Zaccone, H., Zuber, K., and Zuccon, P.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN:0370-2693
ISSN (Online):1873-2445

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