Search for superfragments and measurement of the production of hyperfragments in neutrino-nucleus interactions

Onengut, G; van Dantzig, R; de Jong, M; Oldeman, RGC; Guler, M; Kose, U; Tolun, P; Catanesi, MG; Muciaccia, MT; Winter, K; Van de Vyver, B; Vilain, P; Wilquet, G; Saitta, B; Di Capua, E; Ogawa, S; Shibuya, H; Hristova, IR; Kayis-Topaksu, AYSEL; Kawamura, T; Kolev, D; Meinhard, H; Panman, J; Rozanov, A; Tsenov, R; Uiterwijk, JWE; Zucchelli, P; Goldberg, J; Chikawa, M; Song, JS; Yoon, CS; 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, AG; D'Ambrosio, N; De Lellis, G; De Rosa, G; Di Capua, F; Fiorillo, G; Marotta, A; Messina, M; Migliozzi, P; Lavina, LS; Strolin, P; Tioukov, V; Okusawa, T; Dore, U; Loverre, PF; Ludovici, L; Rosa, G; Santacesaria, R; Satta, A; Spada, FR; Barbuto, E; Bozza, C; Grella, G; Romano, G; Sirignano, C; Sorrentino, S; Sato, Y; Tezuka, I

doi:10.1016/j.nuclphysb.2005.04.029

Search for superfragments and measurement of the production of hyperfragments in neutrino-nucleus interactions

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Onengut G., van Dantzig R., de Jong M., Oldeman R., Guler M., Kose U., ...More

NUCLEAR PHYSICS B, vol.718, pp.35-54, 2005 (SCI-Expanded)

Publication Type: Article / Article
Volume: 718
Publication Date: 2005
Doi Number: 10.1016/j.nuclphysb.2005.04.029
Journal Name: NUCLEAR PHYSICS B
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.35-54
Çukurova University Affiliated: Yes

Abstract

A systematic search for superfragments (charmed nuclei) has been performed in 22 200 neutrinoemulsion interactions obtained with the CHORUS experiment making use of automatic off-line image analysis. The absence of candidates provides an upper limit for the superfragment production rate of 1.9 x 10(-4) (90% C.L.) relative to neutrino charged-current interactions at an average neutrino energy of 27 GeV. In the same analysis 28 hyperfragment decays were found. For the first time, a production rate of hyperfragments in neutrino-emulsion interactions was obtained. The value of the hyperfragment production rate relative to the neutrino charged-current cross-section was found to be (2.0 +/- 0.4(stat) +/- 0.3 (syst)) x 10(-3). (c) 2005 Elsevier B.V. All rights reserved.