| Article | |
| Report number | CERN-EP-98-087 |
| Title | Observation of neutrino induced diffractive $D_s^{*+}$ production and subsequent decay $D_s^{*+} \to D_s^+ \to \tau^+ \to \mu^+$ |
| Author(s) |
Annis, P ; Aoki, S ; Artamonov, S A ; Barbuto, E ; Di Bartolomeo, A ; Bonekämper, D ; Bozza, C ; Brooijmans, G ; Brunner, J ; Bülte, A ; Buontempo, S ; Capone, A ; Cassol, F ; Catanesi, M G ; Chikawa, M ; Cocco, A G ; Cussans, D G ; D'Ambrosio, N ; Van Dantzig, R ; De Lellis, G ; De Pedis, D ; Di Capua, E ; Dore, U ; El-Aidi, R ; Ereditato, A ; Favart, D ; Ferreira, R ; Fiorillo, G ; Frekers, D ; Goldberg, J ; Gorbunov, P ; Grégoire, G ; Grella, G ; Hara, T ; Hérin, J ; Hoshino, K ; Iovane, G ; Ishi, Y ; De Jong, M ; Kawamura, T ; Kayis, A ; Kazuno, M ; Khovanskii, V D ; Kodama, K ; Komatsu, M ; Konijn, J ; Kotaka, Y ; Kozaki, T ; Litmaath, M ; Loverre, P F ; Ludovici, L ; Meinhard, H ; Melzer, O ; Messina, M ; Migliozzi, P ; Miyanishi, M ; Muciaccia, M T ; Nakamura, K ; Nakamura, M ; Nakano, T ; Niu, E ; Niu, K ; Niwa, K ; Obayashi, Y ; Ogawa, S ; Okusawa, T ; Oldeman, R G C ; Onengüt, G ; Øverås, H ; Palladino, Vittorio ; Panman, J ; Papadopoulos, I M ; Park, I G ; Pesen, E ; Piredda, G ; Van der Poel, C A F J ; Radicioni, E ; Ricciardi, S ; Righini, P ; Romano, G ; Rondeshagen, D ; Rosa, G ; Saltzberg, D ; Saitta, B ; Santacesaria, R ; Sato, O ; Sato, Y ; Satta, A ; Shamanov, V V ; Shibuya, H ; Simone, S ; Song, J S ; Sorrentino, S ; Strolin, P ; Tezuka, I ; Tioukov, V ; Tolun, P ; Toshito, T ; Tsenov, R V ; Uiterwijk, J W E ; Ushida, N ; Van der Donckt, M ; Van de Vyver, B L ; Vilain, P ; Visschers, J L ; Vivolo, L ; Weinheimer, C ; Wilquet, G ; Winter, Klaus ; Wolff, T ; Wong, H ; Yoon, C S ; Zeyrek, M T ; Zucchelli, P |
| Affiliation | (Inter-Univ. Inst. High En. (ULB-VUB) Brussels) ; (Kobe Univ.) ; (ITEP Moscow) ; (Univ. Salerno and INFN Salerno) ; (Westfälische Wilhelms-Univ. Münster) ; (Univ. Catholique Louvain) ; (CERN) ; (Humboldt U., Berlin) ; (Univ. Federico II and INFN Naples) ; (Univ. La Sapienza and INFN Rome) ; (Univ. Bari and INFN Bari) ; (Kinki Univ. Higashiosaka) ; (NIKHEF Amsterdam) ; (Univ. Ferrara and INFN Ferrara) ; (Technion Haifa) ; (Nagoya Univ.) ; (Toho Univ. Funabashi) ; (Cukurova Univ. Adana) ; (Aichi Univ. Educ. Kariya) ; (Osaka City Univ.) ; (Gyeongsang Nat. Univ. Jinju) ; (Univ. Cagliari and INFN Cagliari) ; (Utsunomiya Univ.) ; (METU Ankara) |
| Imprint | 28 May 1998. - 6 p. |
| In: | Phys. Lett. B 435 (1998) 458-464 |
| DOI | 10.1016/S0370-2693(98)00914-9 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; CHORUS WA95 |
| Free keywords | D(s)*+ ; D(s)+ ; mu+ ; tau+ |
| Abstract | We report on the first direct observation of a neutrino induced charged-current interaction with two subsequent decays of short-lived particles close to the interaction vertex. This rare double- kink signature in the CHORUS emulsion target is interpreted as a $D_s^{*+}$ production followed by the decay chain $D_s^{*+} \rightarrow D_s^+ \gamma, D_s^+ \rightarrow \tau^+ \nu_\tau ,$ \linebr eak $\tau^+\rightarrow \mu^+\nu_\mu\bar{\nu_\tau}$. The event is characterised by small $Q^2$ and small four-momentum transfer squared $t$ to the target nucleon, which indicates a diffractive pr oduction mechanism. A complete analysis of the event is presented. |
Corresponding record in: Inspire
Record created 1998-07-09, last modified 2018-09-24
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