Leading-order QCD Analysis of Neutrino-Induced Dimuon Events

The results of a leading-order QCD analysis of neutrino-induced charm production are presented. They are based on a sample of 4111 $\numu$- and 871 $\anumu$-induced opposite-sign dimuon events with $E_{\mu 1},E_{\mu 2} > 6~{\rm GeV}$, $35 < E_{\nu} < 290~{\rm GeV}$ and $Q^2> 5.5\,{\rm Ge...

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Detalles Bibliográficos
Autores principales: Vilain, P, Wilquet, G, Beyer, R, Flegel, Wilfried, Mouthuy, T, Øverås, H, Panman, J, Rozanov, A N, Winter, Klaus, Zacek, G, Zacek, V, Büsser, F W, Foos, C, Gerland, L, Layda, T, Niebergall, F, Rädel, G, Stähelin, P, Voss, T, Lemaître, V, Favart, D, Grégoire, G, Knoops, E, Gorbunov, P, Grigoriev, E A, Khovanskii, V D, Maslennikov, A M, Lippich, W, Nathaniel, A, Staude, A, Vogt, J, Cocco, A G, Ereditato, A, Fiorillo, G, Marchetti-Stasi, F, Palladino, Vittorio, Strolin, P, Capone, A, De Pedis, D, Dore, U, Frenkel-Rambaldi, A, Loverre, P F, Macina, Daniela, Piredda, G, Santacesaria, R, Di Capua, E, Ricciardi, S, Saitta, B, Akkus, B, Arik, E, Serin-Zeyrek, M, Sever, R, Tolun, P, Hiller, K, Nahnhauer, R, Roloff, H E
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1007/s100520050611
http://cds.cern.ch/record/364722
Descripción
Sumario:The results of a leading-order QCD analysis of neutrino-induced charm production are presented. They are based on a sample of 4111 $\numu$- and 871 $\anumu$-induced opposite-sign dimuon events with $E_{\mu 1},E_{\mu 2} > 6~{\rm GeV}$, $35 < E_{\nu} < 290~{\rm GeV}$ and $Q^2> 5.5\,{\rm GeV^2}$, observed in the CHARM~II detector exposed to the CERN wideband neutrino and antineutrino beams. The analysis yields the value of \linebreak the charm quark mass $m_c=1.79\pm0.38\,{\rm GeV}/c^2$ and the Cabibbo--Kobayashi--Maskawa matrix element $|V_{cd}|=0.219\pm0.016$. The strange quark content of the nucleon is found to be suppressed with respect to non-strange sea quarks by a factor $\kappa =0.39\pm0.09$.

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