Isospin Effects on Strangeness in Heavy-Ion Collisions

Abstract

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.

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

References in corpus (5)

• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Circumstantial evidence for a soft nuclear symmetry energy at supra-saturation densities
• Isospin effects on sub-threshold kaon production at intermediate energies
• In-medium effects on particle production in heavy ion collisions
• Non-Linear derivative interactions in relativistic hadrodynamics

Cited by in corpus (13)

• A way forward in the study of the symmetry energy: experiment, theory, and observation
• Nuclear dynamics and particle production near threshold energies in heavy-ion collisions
• Dynamics of strangeness and collective flows in heavy-ion collisions near threshold energies
• Constraining the high-density behavior of nuclear equation of state from strangeness production in heavy-ion collisions
• Medium effects in proton-induced $K^0$ production at 3.5 GeV
• In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions
• Dynamics of pion production in heavy-ion collisions around 1A GeV energies
• Nuclear in-medium and isospin effects on subthreshold kaon production in heavy-ion collisions
• Energy Dependent Isospin Asymmetry in Mean-Field Dynamics
• Preequilibrium particle emissions and in-medium effects on the pion production in heavy-ion collisions
• Dynamics of strangeness production in heavy-ion collisions near threshold energies
• Symmetry energy effects on isovector properties of neutron rich nuclei with a Thomas-Fermi approach
• Transport Model Comparison Studies of Intermediate-Energy Heavy-Ion Collisions