Constraining the high-density behavior of nuclear equation of state from strangeness production in heavy-ion collisions

Abstract

The dynamics of pions and strange particles in heavy-ion collisions in the region of 1A GeV energies is investigated by the lanzhou quantum molecular dynamics model for probing the nuclear equation of state at supra-saturation densities. The total multiplicities and the ratios obtained in ${}^{197}$Au+${}^{197}$Au over ${}^{12}$C+${}^{12}$C systems are calculated for selected Skyrme parameters SkP, SLy6, Ska and SIII, which correspond to different modulus of incompressibility of symmetric nuclear matter and different cases of the stiffness of symmetry energy. A decrease trend of the excitation functions of the ratios for strange particle production with increasing incident energy was observed. The available data of K${}^{+}$ production measured by KaoS collaboration are described well with the parameter SkP, which results in a soft equation of state. The conclusions can not be modified by an in-medium kaon-nucleon potential.

arXiv comment7 pages, 6 figures

References in corpus (25)

• Isospin Asymmetry in Nuclei and Neutron Stars
• Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
• Kaon production in heavy ion reactions at intermediate energies
• Evidence for a Soft Nuclear Equation-of-State from Kaon Production in Heavy Ion Collisions
• Probing the nuclear equation of state by $K^{+}$ production in heavy ion collisions
• Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars
• Systematics of central heavy ion collisions in the 1A GeV regime
• Hadronic Matter is Soft
• Probing high-density behavior of symmetry energy from pion emission in heavy-ion collisions
• Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies
• Kaon versus Antikaon Production at SIS Energies
• Isospin effects on sub-threshold kaon production at intermediate energies
• Resonance model study of kaon production in baryon baryon reactions for heavy ion collisions
• The Role of the $\Delta (1920)$ Resonance for Kaon Production in Heavy Ion Collisions
• Production of K+ and of K- Mesons in Heavy-Ion Collisions from 0.6 to 2.0 AGeV Incident Energy
• Subthreshold kaon production and the nuclear equation of state
• Resonance Model of $\pi \Delta \to YK$ for Kaon Production in Heavy Ion Collisions
• Dynamical analysis on heavy-ion fusion reactions near Coulomb barrier
• K^0 and Λproduction in Ni + Ni collisions near threshold
• Strangeness equilibration in heavy ion collisions
• Dynamics of pion production in heavy-ion collisions around 1A GeV energies
• Pion Production in Heavy-ion Collisions in the 1 A GeV region
• Isospin Effects on Strangeness in Heavy-Ion Collisions
• Fusion dynamics of symmetric systems near barrier energies
• Dynamics of strangeness production in heavy-ion collisions near threshold energies

Cited by in corpus (19)

• Momentum dependence of the symmetry potential and its influence on nuclear reactions
• 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
• Density dependence of nuclear symmetry energy constrained by mean-field calculations
• Determination of the nuclear incompressibility from the rapidity-dependent elliptic flow in heavy-ion collisions at beam energies 0.4\emph{A} - 1.0\emph{A} GeV
• 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
• Application of machine learning in the determination of impact parameter in the ${}^{132}$Sn+${}^{124}$Sn system
• In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions
• Probing high-density nuclear symmetry energy with ${\Xi }^{-}/{\Xi }^0$ ratio in heavy-ion collisions at $\sqrt{s_{NN}}\sim 3$ GeV
• Soft nuclear equation-of-state from heavy-ion data and implications for compact stars
• Sensitivity of neutron to proton ratio toward the high density behavior of symmetry energy in heavy-ion collisions
• Double strangeness ${\Xi }^{-}$ production as a probe of nuclear equation of state at high densities
• Nuclear symmetry energy and the role of three-body forces
• Nuclear in-medium and isospin effects on subthreshold kaon production in heavy-ion collisions
• Particle production in antiproton induced nuclear reactions
• The effect of Lorentz-like force on collective flows of K${}^{+}$ in Au+Au collisions at 1.5 GeV/nucleon}{The effect of Lorentz-like force on collective flows of $K^{+}$ in Au+Au collisions at 1.5 GeV/nucleon
• Symmetry energy at subsaturation densities and the neutron skin thickness of 208Pb