Phase Coexistence in Multifragmentation?
The charge ( Z) distributions from intermediate energy heavy-ion reactions depend upon the multiplicity n of intermediate mass fragments through a factor of the form e−cnZ. Experimentally c starts from zero at low values of the transverse energy Et and reaches a saturation value at high Et. In a liquid-gas phase diagram c=0 for the saturated vapor, while c>0 for the unsaturated vapor. It is suggested that in the c≈0 regime the source evaporates down to a sizable remnant, while for c>0 the source vaporizes completely. Percolation of finite systems and nuclear evaporation portray a behavior similar to that observed experimentally.
Repository citation: Moretto, L. G.; Phair, L.; Ghetti, R.; Tso, K.; Colonna, N.; Skulski, W.; Wozniak, G. J.; Bowman, D. R.; Carlin, N.; Chartier, M.; Gelbke, C. K.; Gong, W. G.; Hsi, W. C.; Kim, Y. D.; Lisa, M. A.; Lynch, W. G.; Peaslee, Graham F.; Schwarz, C.; de Souza, R. T.; Tsang, M. B.; and Zhu, F., "Phase Coexistence in Multifragmentation?" (1995). Faculty Publications. Paper 1186.
Published in: Physical Revewi le, Volume 76, Issue 3, January 15, 1995, pages 372-375. Copyright © 1995 American Physical Society.