Isospin diffusion in semi-peripheral collisions is probed as a function of the dissipated energy by studying two systems 58Ni + 58Ni and 58Ni + 197Au, over the incident energy range 52-74\AM. A close examination of the multiplicities of light products in the forward part of phase space clearly shows an influence of the isospin of the target on the neutron richness of these products. A progressive isospin diffusion is observed when collisions become more central, in connection with the interaction time.
@article{arxiv.0812.2784,
title = {Isospin diffusion in semi-peripheral $^{58}Ni$ + $^{197}Au$ collisions at intermediate energies (I): Experimental results},
author = {E. Galichet and M. F. Rivet and B. Borderie and M. Colonna and R. Bougault and A. Chbihi and R. Dayras and D. Durand and J. D. Frankland and D. C. R. Guinet and P. Lautesse and N. Le Neindre and O. Lopez and L. Manduci and M. Parlog and E. Rosato and B. Tamain and E. Vient and C. Volant and J. P. Wieleczko},
journal= {arXiv preprint arXiv:0812.2784},
year = {2010}
}