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Nuclear Flow in Consistent Boltzmann Algorithm Models

G. Kortemeyer·F. Daffin·W. Bauer
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Abstract

We investigate the stochastic Direct Simulation Monte Carlo method (DSMC) for numerically solving the collision-term in heavy-ion transport theories of the Boltzmann-Uehling-Uhlenbeck (BUU) type. The first major modification we consider is changes in the collision rates due to excluded volume and shadowing/screening effects (Enskog theory). The second effect studied by us is the inclusion of an additional advection term. These modifications ensure a non-vanishing second virial and change the equation of state for the scattering process from that of an ideal gas to that of a hard-sphere gas. We analyse the effect of these modifications on the calculated value of directed nuclear collective flow in heavy ion collisions, and find that the flow slightly increases.

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G. Kortemeyer, F. Daffin, W. Bauer. 1995-12-04. Nuclear Flow in Consistent Boltzmann Algorithm Models. https://doi.org/10.1016/0370-2693(96)00179-7

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