New isospin e ffects in central heavy-ion collisions at Fermi energies
Nuclear Experiment
2012-10-18 v1
Abstract
Isospin e ffects on multifragmentation properties were studied thanks to nuclear collisions between di fferent isotopes of xenon beams and tin targets. It is shown that, in central collisions leading to multifragmentation, the mean number of fragments and their mean kinetic energy increase with the neutron-richness of the total system. Comparisons with a stochastic transport model allow to attribute the multiplicity increase to the multifragmentation stage, before secondary decay. The total charge bound in fragments is proposed as an alternate variable to quantify preequilibrium emission and to investigate symmetry energy e ffects.
Keywords
Cite
@article{arxiv.1209.6535,
title = {New isospin e ffects in central heavy-ion collisions at Fermi energies},
author = {F. Gagnon-Moisan and E. Galichet and M. -F. Rivet and B. Borderie and M. Colonna and R. Roy and G. Ademard and M. Boisjoli and E. Bonnet and R. Bougault and A. Chbihi and J. D. Frankland and D. Guinet and P. Lautesse and E. Legou ee and N. Le Neindre and L. Manduci and P. Marini and P. Napolitani and M. Pârlog and P. Pawlowski and E. Rosato and M. Vigilante},
journal= {arXiv preprint arXiv:1209.6535},
year = {2012}
}
Comments
10 pages. 6 figures. Submitted to Physical Review C