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Journal Articles Physical Review Letters Year : 1999

Virial corrections to simulations of heavy ion reactions

K. Morawetz
  • Function : Author
V. Spicka
  • Function : Author
P. Lipavsky
  • Function : Author
G. Kortemeyer
  • Function : Author
C. Kuhrts
  • Function : Author

Abstract

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.

Dates and versions

in2p3-00087671 , version 1 (26-07-2006)

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K. Morawetz, V. Spicka, P. Lipavsky, G. Kortemeyer, C. Kuhrts, et al.. Virial corrections to simulations of heavy ion reactions. Physical Review Letters, 1999, 82, pp.3767-3770. ⟨in2p3-00087671⟩
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