Virial corrections to simulations of heavy ion reactions

Details Virial corrections to simulations of heavy ion reactions Virial corrections to simulations of heavy ion reactions

1998-10-14

arxiv.org/abs/nucl-th/9810043v2

Phys.Rev.Lett. 82 (1999) 3767-3770

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1103/PhysRevLett.82.3767

Within QMD simulations we demonstrate the effect of virial corrections on heavy ion reactions. Unlike in standard codes, the binary collisions are treated as non-local so that the contribution of the collision flux to the reaction dynamics is covered. A comparison with standard QMD simulations shows that the virial corrections lead to a broader proton distribution bringing theoretical spectra closer towards experimental values. Complementary BUU simulations reveal that the non-locality enhances the collision rate in the early stage of the reaction. It suggests that the broader distribution appears due to an enhanced pre-equilibrium emission of particles.

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