Double strangeness ${\Xi }^{-}$ production as a probe of nuclear equation of state at high densities

Abstract

Double strangeness ${\Xi }^{-}$ production in Au+Au collisions at 2, 4, and 6 GeV/nucleon incident beam energies is studied with the pure hadron cascade version of a multi-phase transport model. It is found that due to larger nuclear compression, the model with the soft equation of state (EoS) gives larger yields of both single strangeness ($K^{+}$ and $\Lambda +{\Sigma }^0$) and double strangeness ${\Xi }^{-}$. The sensitivity of the double strangeness ${\Xi }^{-}$ to the EoS is evidently larger than that of $K^{+}$ or $\Lambda +{\Sigma }^0$ since the phase-space distribution of produced ${\Xi }^{-}$ is more compact compared to those of the single strangeness. The larger sensitivity of the yields ratio of ${\Xi }^{-}$ to the EoS from heavy and light systems is kept compared to that of the single strangeness. The study of ${\Xi }^{-}$ production in relativistic heavy-ion collisions provides an alternative for the ongoing heavy-ion collision program at facilities worldwide for identifying the EoS at high densities, which is relevant to the investigation of the phase boundary and onset of deconfinement of dense nuclear matter.

5 pages, 5 figures, PLB, in production

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Cited by in corpus (19)

• Further developments of a multi-phase transport model for relativistic nuclear collisions
• Directed flow of $\Lambda$ in high-energy heavy-ion collisions and $\Lambda$ potential in dense nuclear matter
• Probing Strangeness Canonical Ensemble with $K^{-}$, $\varphi (1020)$ and ${\Xi }^{-}$ Production in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}=3\mathrm{GeV}$
• Probing high-density nuclear symmetry energy with ${\Xi }^{-}/{\Xi }^0$ ratio in heavy-ion collisions at $\sqrt{s_{NN}}\sim 3$ GeV
• Testing the phase transition parameters inside neutron stars with the production of protons and lambdas in relativistic heavy-ion collisions
• Phase diagram determination at fivefold nuclear compression
• Probing the incompressibility of dense hadronic matter near QCD phase transition in relativistic heavy-ion collisions
• A method for probing the formation of quark matter
• High-density symmetry energy from subthreshold hyperon production in heavy-ion collisions
• Violation of NCQ scaling in hadron elliptic flow in Au+Au collisions at $\sqrt{s_{NN}}=3.0-7.7GeV
• Momentum dependence of near-threshold photoproduction of ${\Xi }^{-}$ hyperons off nuclei and their properties in the nuclear medium
• Probing $\Lambda$ potential via its $v_2$ flow in hypernuclei-induced reaction
• Exploring hadron-quark phase transition in heavy-ion collisions using particle emission ratios in heavy and light reaction systems
• ${\Omega }^{-}$ production as a probe of equation of state of dense matter near the QCD phase transition in relativistic heavy-ion collisions
• Probing $\Lambda$ potential at high and low densities via \(^3_Λ\)H production in C+C reactions
• Constraining the Phase-Transition EoS using the Energy Dependence of Directed Flow
• Formation of large chunk of nuclear matter in heavy-ion collisions
• Investigation of the Spectator Effect on Light Nuclei Production in Nucleus-Nucleus Collisions at High Baryon Density Region
• Directed flow of $\Lambda$ from heavy-ion collisions and hyperon puzzle of neutron stars