Production and rescattering of strange baryons at SPS energies in a transport model with hadron potentials

Details Production and rescattering of strange baryons at SPS energies in a transport model with hadron potentials Production and rescattering of strange baryons at SPS energies in a transport model with hadron potentials

2010-10-13

arxiv.org/abs/1010.2570v1

Physics

Nuclear Physics

Nuclear Theory

15 pages, 7 figures

Scientific paper

A mean-field potential version of the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model is used to investigate the production of strange baryons, especially the $\Lambda$s and $\overline{\Lambda}$s, from heavy ion collisions at SPS energies. It is found that, with the consideration of both formed and pre-formed hadron potentials in UrQMD, the transverse mass and longitudinal rapidity distributions of experimental data of both $\Lambda$s and $\overline{\Lambda}$s can be quantitatively explained fairly well. Our investigation also shows that both the production mechanism and the rescattering process of hadrons play important roles in the final yield of strange baryons.

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