Multifragmentation of a ``fused system'' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high performances of the INDRA 4pi array. Experimental higher-order charge correlations for fragments show a weak but non ambiguous enhancement of events with nearly equal-sized fragments. Supported by dynamical calculations in which spinodal decomposition is simulated, this observed enhancement is interpreted as a ``fossil'' signal of spinodal instabilities in finite nuclear systems.
@article{arxiv.nucl-ex/0103009,
title = {Evidence for Spinodal Decomposition in Nuclear Multifragmentation},
author = {B. Borderie and G. Tabacaru and Ph. Chomaz and M. Colonna and A. Guarnera and M. Parlog and M. F Rivet and the INDRA Collaboration},
journal= {arXiv preprint arXiv:nucl-ex/0103009},
year = {2019}
}
Comments
4 pages, 4 figures, to be published in Phys. Rev. Letters