| Article | |
| Report number | CERN-EP-2002-075 |
| Title | Determination of the semi-leptonic branching fraction of charm hadrons produced in neutrino charged-current interactions |
| Author(s) |
Kayis-Topaksu, A ; Onengüt, G ; De Jong, M ; Melzer, O ; Oldeman, R G C ; Pesen, E ; Spada, F R ; Van Dantzig, R ; Visschers, J L ; Güler, M ; 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, Klaus ; El-Aidi, R ; Van de Vyver, B ; Vilain, P ; Wilquet, G ; Saitta, B ; Di Capua, E ; Ogawa, S ; Shibuya, H ; Artamonov, S 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 V ; 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 ; Makhlyoueva, I V ; Gorbunov, P ; Khovanskii, V D ; Shamanov, V 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 |
| Affiliation | (Cukurova Univ., Adana, Turkey) ; (NIKHEF, Amsterdam, The Netherlands) ; (METU, Ankara, Turkey) ; (Univ. Bari and INFN, Bari, Italy) ; (Humboldt U., Berlin) ; (Inter-Univ. Institute for High Energies (ULB-VUB) Brussels, Belgium) ; (Univ. Cagliari and INFN, Cagliari, Italy) ; (Univ. Ferrara and INFN, Ferrara, Italy) ; (Toho Univ., Funabashi, Japan) ; (CERN) ; (Technion, Haifa, Israel) ; (Kinki Univ., Higashiosaka, Japan) ; (Bogazici Univ., Istanbul, Turkey) ; (Gyeongsang National Univ., Jinju, Korea) ; (Aichi Univ. of Education, Kariya, Japan) ; (Kobe Univ., Kobe, Japan) ; (Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium) ; (Institute for Theoretical and Experimental Physics, Moscow, Russian) ; (Federation) ; (Westfälische Wilhelms-Univ., Münster, Germany) ; (Nagoya Univ., Nagoya, Japan) ; (Univ. Federico II and INFN, Naples, Italy) ; (Osaka City Univ., Osaka, Japan) ; (Univ. La Sapienza and INFN, Rome, Italy) ; (Univ. Salerno and INFN, Salerno, Italy) ; (Utsunomiya Univ., Utsunomiya, Japan) |
| Publication | 2002 |
| Imprint | 17 Oct 2002 |
| Number of pages | 12 |
| In: | Phys. Lett. B 549 (2002) 48-57 |
| DOI | 10.1016/S0370-2693(02)02865-4 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; CHORUS WA95 |
| 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 56,172 $\nu_\mu$ charged-current interactions analysed so far, we find a value of $B_\mu = 0.093 \pm 0.009 \, (stat.) \pm 0.009 \, (syst.)$ for the semi-leptonic branching fraction of charm hadrons. The result for events with visible energy larger than 30 GeV, $B_\mu = 0.102 \pm 0.016 \, (stat.) \pm 0.010 \, (syst.)$, can be combined with the existing measurements of the dimuon rate to yield a value of $0.219 \pm 0.022$ for the magnitude of the Cabibbo--Kobayashi--Maskawa matrix element $|V_{cd}|$. |
Corresponding record in: Inspire
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Registre creat el 2002-10-28, darrera modificació el 2018-09-24
