Dynamics of strangeness production in heavy-ion collisions near threshold energies

Abstract

Within the framework of the improved isospin dependent quantum molecular dynamics (ImIQMD) model, the dynamics of strangeness (K${}^{0,+}$, $\Lambda$ and ${\Sigma }^{-,0,+}$) production in heavy-ion collisions near threshold energies is investigated systematically, in which the strange particles are considered to be mainly produced by the inelastic collisions of baryon-baryon and pion-baryon. The collisions in the region of supra-saturation densities of the dense baryonic matter formed in heavy-ion collisions dominate the yields of strangeness production. The total multiplicities as functions of incident energies and collision centralities are calculated with the Skyrme parameter SLy6. The excitation function of strangeness production is analyzed and also compared with the KaoS data for the K${}^{+}$ production in the reactions ${}^{12}$C+${}^{12}$C and ${}^{197}$Au+${}^{197}$Au.

arXiv comment4 pages, 4 figures

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Cited by in corpus (10)

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• Nuclear dynamics and particle production near threshold energies in heavy-ion collisions
• Nuclear in-medium effects and collective flows in heavy-ion collisions at intermediate energies
• Transverse emission of isospin ratios as a probe of high-density symmetry energy in isotopic nuclear reactions
• Effective mass splitting of neutron and proton and isospin emission 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
• In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions
• Nuclear in-medium and isospin effects on subthreshold kaon production in heavy-ion collisions
• Particle production in antiproton induced nuclear reactions