Nuclear Flow in Consistent Boltzmann Algorithm Models
نویسنده
چکیده
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. EMail: [email protected] PACS numbers: 05.70.Ce, 02.50.Ng, 51.10.+y Electronic Manuscripts: A LaTeX-version of the text and PostScript-files of the figures are available and can be received via email. Typeset using REVTEX
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