| Article | |
| Report number | CERN-PH-EP-2005-039 |
| Title | Measurement of topological muonic branching ratios of charmed hadrons produced in neutrino-induced charged-current interactions |
| Author(s) |
Kayis-Topaksu, A ; Önengüt, G ; Van Dantzig, R ; De Jong, M ; Oldeman, R G C ; Güler, M ; Köse, U ; Tolun, P ; Catanesi, M G ; Muciaccia, M T ; Winter, Klaus ; Van de Vyver, B ; Vilain, P ; Wilquet, G ; Saitta, B ; Di Capua, E ; Ogawa, S ; Shibuya, H ; Hristova, I R ; Kawamura, T ; Kolev, D ; Meinhard, H ; Panman, J ; Rozanov, A ; Tsenov, R V ; Uiterwijk, J W E ; Zucchelli, P ; Goldberg, J ; Chikawa, M ; 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 ; Artamonov, A V ; Gorbunov, P ; Khovanskii, V D ; Shamanov, V V ; Tsukerman, I ; Bruski, N ; Frekers, D ; Hoshino, K ; Kawada, J ; Komatsu, M ; Myanishi, 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 ; De Rosa, G ; Di Capua, F ; Fiorillo, G ; Marotta, A ; Messina, M ; Migliozzi, P ; Scotto-Lavina, L ; Strolin, P ; Tioukov, V ; Okusawa, T ; Dore, U ; Loverre, P F ; Ludovici, L ; Rosa, G ; Santacesaria, R ; Satta, A ; Spada, F R ; Barbuto, E ; Bozza, C ; Grella, G ; Romano, G ; Sirignano, C ; Sorrentino, S ; Sato, Y ; Tezuka, I |
| Affiliation | (CERN) |
| Publication | 2005 |
| Imprint | 12 Aug 2005 |
| Number of pages | 13 |
| In: | Phys. Lett. B 626 (2005) 24-34 |
| DOI | 10.1016/j.physletb.2005.08.082 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; CHORUS WA95 |
| Abstract | From 1994 to 1997, the emulsion target of the CHORUS detector was exposed to the wideband neutrino beam of the CERN SPS. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. From this sample of events based on the data acquired by new automatic scanning systems, 2013 charm-decay events were selected by a pattern recognition program. They were confirmed as decays through visual inspection. Based on these events, the effective branching ratio of charmed particles into muons was determined to be Bμ = [7.3 ± 0.8 (stat) ± 0.2 (syst)] à 10â'2. In addition, the muonic branching ratios are presented for dominating charm decay topologies. Normalization of the muonic decays to chargedcurrent interactions provides _μâ'μ+/_cc = [3.16 ± 0.34 (stat) ± 0.09 (syst)] à 10â'3. Selecting only events with visible energy greater than 30 GeV gives a value of Bμ that is less affected by the charm production threshold and quasi-elastic _+ c production. Combining this value with the current average of Bμ à |Vcd|2 at the leading order yields the value of |Vcd|LO = 0.236 ± 0.016. |
Corresponding record in: Inspire
Email contact: [email protected]
Record created 2005-09-09, last modified 2018-09-24
