Isospin Effects on Strangeness in Heavy-Ion Collisions

Details Isospin Effects on Strangeness in Heavy-Ion Collisions Isospin Effects on Strangeness in Heavy-Ion Collisions

2009-07-27

arxiv.org/abs/0907.4611v2

Nucl.Phys.A832:88-99,2010

Physics

Nuclear Physics

Nuclear Theory

15 papes, 5 figures. Accepted for publication in Nuclear Physics

Scientific paper

10.1016/j.nuclphysa.2009.11.009

Kaon properties are studied within the framework of a fully covariant transport approach. The kaon-nucleon potential is evaluated in two schemes, a chiral perturbative approach and an effective One-Boson-Exchange model. Isospin effects are explicitly accounted for in both models. The transport calculations indicate a significant sensitivity of momentum distributions and total yields of $K^{0,+}$ isospin states on the choice of the kaon-nucleon interaction. Furthermore, isospin effects are rather moderate on absolute kaon yields, but appear on strangeness ratios. This is an important issue in determining the high density symmetry energy from studies of strangeness production in heavy-ion collisions.

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