Comparison of dynamical multifragmentation models
Nuclear Theory
2008-11-26 v1
Abstract
Multifragmentation scenarios, as predicted by antisymmetrized molecular dynamics (AMD) or momentum-dependent stochastic mean-field (BGBD) calculations are compared. While in the BGBD case fragment emission is clearly linked to the spinodal decomposition mechanism, i.e. to mean-field instabilities, in AMD many-body correlations have a stronger impact on the fragmentation dynamics and clusters start to appear at earlier times. As a consequence, fragments are formed on shorter time scales in AMD, on about equal footing of light particle pre-equilibrium emission. Conversely, in BGBD pre-equilibrium and fragment emissions happen on different time scales and are related to different mechanisms.
Cite
@article{arxiv.nucl-th/0609053,
title = {Comparison of dynamical multifragmentation models},
author = {J. Rizzo and M. Colonna and A. Ono},
journal= {arXiv preprint arXiv:nucl-th/0609053},
year = {2008}
}