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.

4 pages, 4 figures

References in corpus (7)

• Isospin effects on sub-threshold kaon production at intermediate energies
• Production of K+ and of K- Mesons in Heavy-Ion Collisions from 0.6 to 2.0 AGeV Incident Energy
• Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier
• K^0 and Λproduction in Ni + Ni collisions near threshold
• Dynamics of pion production in heavy-ion collisions around 1A GeV energies
• Pion Production in Heavy-ion Collisions in the 1 A GeV region
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Cited by in corpus (2)

• Constraining the high-density behavior of nuclear equation of state from strangeness production in heavy-ion collisions
• Particle production in antiproton induced nuclear reactions