Quasi-projectile events from peripheral 35 A.MeV Au+ Au collisions are compared to central Au + C, Au + Cu and Au + Au events in the same range of excitation energy in terms of critical partitions and critical exponents. All the different data sets coherently point to a value E*c=4.5 A.MeV for the apparent critical excitation energy. The critical exponents tau, sigma are compatible with the observation of a liquid-gas phase transition for these systems.
@article{arxiv.nucl-ex/0205003,
title = {Critical behaviors in central and peripheral collisions: a comparative analysis},
author = {M. D'Agostino and M. Bruno and F. Gulminelli and R. Bougault and F. Cannata and Ph. Chomaz and F. Gramegna and N. Le Neindre and G. V. Margagliotti and A. Moroni and G. Vannini and J. P. Wieleczko},
journal= {arXiv preprint arXiv:nucl-ex/0205003},
year = {2009}
}
Comments
21 pages, 10 postscript figures, submitted to Phys.Rev.C on 6-may-2002