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

KAYIŞ TOPAKSU, AYSEL; Onengüt, G.; de Jong, M.; Melzer, O.; Oldeman, R.G.C.; PESEN, ERHAN; Spada, F.R.; van Dantzig, R.; Visschers, J.L.; GÜLER, ALİ; Serin-Zeyrek, M.; Sever, R.; Tolun, P.; Zeyrek, M.T.; Armenise, N.; Catanesi, M.G.; De Serio, M.; Ieva, M.; Muciaccia, M.T.; Radicioni, E.; Simone, S.; Bülte, 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, I.R.; Kawamura, T.; Kolev, D.; Meinhard, H.; Panman, J.; Papadopoulos, I.M.; Ricciardi, S.; Rozanov, A.; Tsenov, R.; Uiterwijk, J.W.E.; Zucchelli, P.; Goldberg, J.; Chikawa, M.; Arik, E.; Song, J.S.; Yoon, C.S.; Kodama, K.; Ushida, N.; Aoki, S.; Hara, T.; Delbar, T.; Favart, D.; Grégoire, 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, A.G.; D'Ambrosio, N.; De Lellis, G.; Di Capua, F.; De Rosa, G.; Ereditato, A.; Fiorillo, G.; Messina, M.; Migliozzi, P.; Pistillo, C.; Scotto Lavina, L.; Strolin, P.; Tioukov, V.; Nakamura, K.; Okusawa, T.; Dore, U.; Loverre, P.F.; 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

KAYIŞ TOPAKSU A., Onengüt G., de Jong M., Melzer O., Oldeman R., PESEN E., ...Daha Fazla

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, cilt.549, sa.1-2, ss.48-57, 2002 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 549 Sayı: 1-2
Basım Tarihi: 2002
Doi Numarası: 10.1016/s0370-2693(02)02865-4
Dergi Adı: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.48-57
Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

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 56172vμu charged-current interactions analysed so far, we find a value of Bμ = 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, Bμ = 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 \Vcd\. © 2002 Elsevier Science B.V. All rights reserved.