Clustering in light nuclei in fragmentation above 1 A GeV
N. P. Andreeva, D. A. Artemenkov, V. Bradnova, M. M. Chernyavsky, A. Sh. Gaitinov, N. A. Kachalova, S. P. Kharlamov, A. D. Kovalenko, M. Haiduc, S. G. Gerasimov, L. A. Goncharova, V. G. Larionova, A. I. Malakhov, A. A. Moiseenko, G. I. Orlova, N. G. Peresadko, N. G. Polukhina, P. A. Rukoyatkin, V. V. Rusakova, V. R. Sarkisyan, T. V. Shchedrina, E. Stan, R. Stanoeva, I. Tsakov, S. Vokal, A. Vokalova, P. I. Zarubin, I. G. Zarubina
Abstract
The relativistic invariant approach is applied to analyzing the 3.3 A GeV 22Ne fragmentation in a nuclear track emulsion. New results on few-body dissociations have been obtained from the emulsion exposures to 2.1 A GeV 14N and 1.2 A GeV 9Be nuclei. It can be asserted that the use of the invariant approach is an effective means of obtaining conclusions about the behavior of systems involving a few He nuclei at a relative energy close to 1 MeV per nucleon. The first observations of fragmentation of 1.2 A GeV 8B and 9C nuclei in emulsion are described. The presented results allow one to justify the development of few-body aspects of nuclear astrophysics.
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