Special features of the $^9$Be$\to$2He fragmentation in emulsion at an energy of 1.2~A~GeV

Artemenkov, D. A.; Bradnova, V.; Chernyavsky, M. M.; Kachalova, N. A.; Kovalenko, A. D.; Haiduc, M.; Malakhov, A. I.; Orlova, G. I.; Rukoyatkin, P. A.; Rusakova, V. V.; Shchedrina, T. V.; Stan, E.; Stanoeva, R.; Tsakov, I.; Zarubin, P. I.; Zarubina, I. G.

Special features of the $^9$Be$\to$2He fragmentation in emulsion at an energy of 1.2~A~GeV

Authors

Description

The results of investigations of the relativistic $^9$Be nucleus fragmentation in emulsion which entails the production of two He fragments of an energy of 1.2~A~GeV are presented. The results of the angular measurements of the $^9$Be$\to$2He events are analyzed. The $^9$Be$\to^8$Be+n fragmentation channel involving the $^8$Be decay from the ground (0$^+$) and the first excited (2$^+$) states to two $α$ particles is observed to be predominant.
10 pages, 6 figures, conference: Conference on Physics of Fundamental Interactions, Moscow, Russia, 5-9 Dec 2005 (Author's translation)