Effects of QCD critical point on light nuclei production

Abstract

Using the nucleon coalescence model, which can naturally take into account the correlations in the nucleon density distribution, we study the effects of QCD critical point on light nuclei production in relativistic heavy-ion collisions. We find that the yield ratio $N_t{N}_p/N_d^2$ of proton ($p$), deuteron ($d$) and triton ($t$) increases monotonically with the nucleon density correlation length, which is expected to increase significantly near the critical point in the QCD phase diagram. Our study thus demonstrates that the yield ratio $N_t{N}_p/N_d^2$ can be used as a sensitive probe of the QCD critical phenomenon. We further discuss the relation between the QCD phase transitions in heavy-ion collisions and the possible non-monotonic behavior of \pdt~in its collision energy dependence.

6 pages, 1 figure

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Cited by in corpus (10)

• Beam Energy Dependence of Triton Production and Yield Ratio (${\mathrm{N}}_t\times {\mathrm{N}}_p/{\mathrm{N}}_d^2$) in Au+Au Collisions at RHIC
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• Directed flow and global polarization in Au+Au collisions across energies covered by the beam energy scan at RHIC
• Speed of sound and polytropic index in QCD matter
• Production characteristics of light (anti-)nuclei from (anti-)nucleon coalescence in heavy ion collisions at energies employed at the RHIC beam energy scan
• Relativistic kinetic approach to light nuclei production in high-energy nuclear collisions
• Light-nuclei production in heavy-ion collisions within a thermodynamical approach
• Examination of background effects on light-nuclei yield ratio in relativistic heavy-ion collisions
• Partonic Critical Opalescence and Its Impact on the Jet Quenching Parameter $\hat{q}$
• Collision system size scan for light (anti-)nuclei and (anti-)hypertriton production in high energy nuclear collisions