Associated charm production in neutrino-nucleus interactions

Kayis-Topaksu, AYSEL; Oenenguet, G.; van Dantzig, R.; de Jong, M.; Oldeman, R.; Gueler, M.; Koese, U.; Tolun, P.; Catanesi, M.; Muciaccia, M.; Winter, K.; van de Vyver, B.; Vilain, P.; Wilquet, G.; Saitta, B.; Di Capua, E.; Ogawa, S.; Shibuya, H.; Hristova, I.; Kawamura, T.; Kolev, D.; Meinhard, H.; Panman, J.; Rozanov, A.; Tsenov, R.; Uiterwijk, J.; Zucchelli, P.; Goldberg, J.; Chikawa, M.; Song, J.; Yoon, C.; Kodama, K.; Ushida, N.; Aoki, S.; Hara, T.; Delbar, T.; Favart, D.; Gregoire, G.; Kalinin, S.; Makhlioueva, I.; Artamonov, A.; Gorbunov, P.; Khovansky, V.; Shamanov, V.; Tsukerman, I.; Bruski, N.; Frekers, D.; Hoshino, K.; Kawada, J.; Komatsu, M.; Miyanishi, M.; Nakamura, M.; Nakano, T.; Narita, K.; Niu, K.; Niwa, K.; Nonaka, N.; Sato, O.; Toshito, T.; Buontempo, S.; Cocco, A.; D'Ambrosio, N.; De Lellis, G.; De Rosa, G.; Di Capua, F.; Fiorillo, G.; Marotta, A.; Migliozzi, P.; Lavina, L.; Strolin, P.; Tioukov, V.; Okusawa, T.; Dore, U.; Loverre, P.; Ludovici, L.; Rosa, G.; Santacesaria, R.; Satta, A.; Spada, F.; Barbuto, E.; Bozza, C.; Grella, G.; Romano, G.; Sirignano, C.; Sorrentino, S.; Sato, Y.; Tezuka, I.

doi:10.1140/epjc/s10052-007-0410-8

Associated charm production in neutrino-nucleus interactions

Atıf İçin Kopyala

Kayis-Topaksu A., Oenenguet G., van Dantzig R., de Jong M., Oldeman R. G. C., Gueler M., ...Daha Fazla

EUROPEAN PHYSICAL JOURNAL C, cilt.52, sa.3, ss.543-552, 2007 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 52 Sayı: 3
Basım Tarihi: 2007
Doi Numarası: 10.1140/epjc/s10052-007-0410-8
Dergi Adı: EUROPEAN PHYSICAL JOURNAL C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.543-552
Çukurova Üniversitesi Adresli: Evet

Özet

In this paper a search for associated charm production both in neutral and charged current nu-nucleus interactions is presented. The improvement of automatic scanning systems in the CHORUS experiment allows an efficient search to be performed in emulsion for short-lived particles. Hence a search for rare processes, like the associated charm production, becomes possible through the observation of the double charm-decay topology with a very low background. About 130000 nu. interactions located in the emulsion target have been analysed. Three events with two charm decays have been observed in the neutral-current sample with an estimated background of 0.18 +/- 0.05. The relative rate of the associated charm cross-section in deep inelastic. interactions, sigma(c (c) over barv)/sigma(DIS)(NC) = (3.62(-2.42)(+2.95)(stat)+/-0.54(sysyt))x10(-3) has been measured. One event with two charm decays has been observed in charged-current nu(mu) interactions with an estimated background of 0.18 +/- 0.06 and the upper limit on associated charm in charged- current interactions at 90% C. L. has been found to be sigma(c (c) over bar mu(-))/sigma(CC) < 9.69 x 10(-4).