Cooling dynamics in multi-fragmentation processes

Liu, T. X.; Lynch, W. G.; Goethem, M. J. van; Liu, X. D.; Shomin, R.; Tan, W. P.; Tsang, M. B.; Verde, G.; Wagner, A.; Xi, H. F.; Xu, H. S.; Friedman, W. A.; Souza, S. R.; Donangelo, R.; Beaulieu, L.; Davin, B.; Larochelle, Y.; Lefort, T.; Souza, R. T. de; Yanez, R.; Viola, V. E.; Charity, R. J.; Sobotka, L. G.

doi:10.1209/epl/i2006-10040-x

Cooling dynamics in multi-fragmentation processes

Liu, T. X.; Lynch, W. G.; van Goethem, M. J.; Liu, X. D.; Shomin, R.; Tan, W. P.; Tsang, M. B.; Verde, G.; Wagner, A.; Xi, H. F.; Xu, H. S.; Friedman, W. A.; Souza, S. R.; Donangelo, R.; Beaulieu, L.; Davin, B.; Larochelle, Y.; Lefort, T.; de Souza, R. T.; Yanez, R.; Viola, V. E.; Charity, R. J.; Sobotka, L. G.

Fragment energy spectra of neutron-deficient isotopes are significantly more energetic than those of neutron-rich isotopes of the same element. This trend is well beyond what can be expected for the bulk multi-fragmentation of an equilibrated system. It can be explained, however, if some of these fragments are emitted earlier through the surface of the system while it is expanding and cooling.

Keywords: Thermal and statistical models; Multifragment emission and correlations

EPL - Europhysics Letters 74(2006)5, 806-812
DOI: 10.1209/epl/i2006-10040-x
Cited 11 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-8563