G. Ademard, B. Borderie, A. Chbihi, O. Lopez, P. Napolitani, M. F. Rivet, M. Boisjoli, E. Bonnet, R. Bougault, J. D. Frankland, E. Galichet, D. Guinet, M. Kabtoul, G. Lehaut, P. Lautesse, M. La Commara, N. Le Neindre, P. Marini, M. Pârlog, P. Pawłowski, E. Rosato, R. Roy, E. Spadaccini, E. Vient, M. Vigilante, J. P. Wieleczko. (INDRA Collaboration)
الملخص العربي
Abstract. The equation of state of asymmetric nuclear matter is still controversial, as predictions at subsat-
uration as well as above normal density widely diverge. We discuss several experimental results measured
in heavy-ion collisions with the INDRA array in the incident energy range 5–80 A MeV. In particular an es-
timate of the density dependence of the symmetry energy is derived from isospin diffusion results compared
with a transport code: the potential part of the symmetry energy linearly increases with the density. We
demonstrate that isospin equilibrium is reached in mid-central collisions for the two reactions Ni+Au at
52 A MeV and Xe + Sn at 32 A MeV. New possible variables and an improved modelization to investigate
symmetry energy are discussed.
محمد كبتول | Mohammad KABTOUL | 895