Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged-current interactions

Kayis-Topaksu, AYSEL; Onengut, G; de Jong, M; Melzer, O; Oldeman, RGC; Pesen, E; Spada, FR; van Dantzig, R; Visschers, JL; Guler, M; Serin-Zeyrek, M; Sever, R; Tolun, P; Zeyrek, MT; Armenise, N; Catanesi, MG; De Serio, M; Leva, M; Muciaccia, MT; Radicioni, E; Simone, S; Bulte, A; Winter, K; El-Aidi, R; Van de Vyver, B; Vilain, P; Wilquet, G; Saitta, B; Di Capua, E; Ogawa, S; Shibuya, H; Artamonov, A; Chizhov, M; Doucet, M; Hristova, IR; Kawamura, T; Kolev, D; Meinhard, H; Panman, J; Papadopoulos, IM; Ricciardi, S; Rozanov, A; Tsenov, R; Uiterwijk, JWE; Zucchelli, P; Goldberg, J; Chikawa, M; Arik, E; Song, JS; Yoon, CS; Kodama, K; Ushida, N; Aoki, S; Hara, T; Delbar, T; Favart, D; Gregoire, G; Kalinin, S; Maklioueva, I; Gorbunov, P; Khovansky, V; Shamanov, V; Tsukerman, I; Bruski, N; Frekers, D; Hoshino, K; Komatsu, M; Miyanishi, M; Nakamura, M; Nakano, T; Narita, K; Niu, K; Niwa, K; Nonaka, N; Sato, O; Toshito, T; Buontempo, S; Cocco, AG; D'Ambrosio, N; De Lellis, G; Di Capua, F; De Rosa, G; Ereditato, A; Fiorillo, G; Messina, M; Migliozzi, P; Pistillo, C; Lavina, LS; Strolin, P; Tioukov, V; Nakamura, K; Okusawa, T; Dore, U; Loverre, PF; Ludovici, L; Righini, P; Rosa, G; Santacesaria, R; Satta, A; Barbuto, E; Bozza, C; Grella, G; Romano, G; Sirignano, C; Sorrentino, S; Sato, Y; Tezuka, I

doi:10.1016/s0370-2693(02)02865-4

Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged-current interactions

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Kayis-Topaksu A., Onengut G., de Jong M., Melzer O., Oldeman R., Pesen E., ...More

PHYSICS LETTERS B, vol.549, pp.48-57, 2002 (SCI-Expanded)

Publication Type: Article / Article
Volume: 549
Publication Date: 2002
Doi Number: 10.1016/s0370-2693(02)02865-4
Journal Name: PHYSICS LETTERS B
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.48-57
Çukurova University Affiliated: Yes

Abstract

During the years 1994-1997, the emulsion target of the CHORUS detector was exposed to the CERN-SPS Wide Band Neutrino Beam. The improvements of the past few years in the automatic emulsion scanning systems allowed a sample of events located in emulsion to be used for studies of charm production. Based on a sample of 56 172nu(mu) charged-current interactions analysed so far, we find a value of B-mu = 0.093+/-0.009(stat.) +/-0.009(syst.) for the semi-leptonic branching fraction of charm hadrons. The result for events with visible energy larger than 30 GeV, B-mu = 0.102+/-0.016(stat.) +/-0.010(syst.), can be combined with the existing measurements of the dimuon rate to yield a value of 0.219+/-0.022 for the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element \V-cd\. (C) 2002 Elsevier Science B.V. All rights reserved.