Multiplicity Scaling of Light Nuclei Production in Relativistic Heavy-Ion Collisions

Abstract

Using the nucleon coalescence model based on kinetic freeze-out nucleons from the 3D MUSIC+UrQMD and the 2D VISHNU hybrid model with a crossover equation of state, we study the multiplicity dependence of deuteron ($d$) and triton ($t$) production from central to peripheral Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 7.7, 14.5, 19.6, 27, 39, 62.4 and 200 GeV and Pb+Pb at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV, respectively. It is found that the ratio $N_t{N}_p/N_d^2$ of the proton yield $N_p$, deuteron yield $N_d$ and triton yield $N_t$ exhibits a scaling behavior in its multiplicity dependence, i.e., decreasing monotonically with increasing charged-particle multiplicity. A similar multiplicity scaling of this ratio is also found in the nucleon coalescence calculation based on kinetic freeze-out nucleons from a multiphase transport (AMPT) model. The scaling behavior of $N_t{N}_p/N_d^2$ can be naturally explained by the interplay between the sizes of light nuclei and the nucleon emission source. We further argue that the multiplicity scaling of $N_t{N}_p/N_d^2$ can be used to validate the production mechanism of light nuclei, and the collision energy dependence of this yield ratio can further serve as a baseline in the search for the QCD critical point in relativistic heavy-ion collisions.

9 pages, 5 figures

References in corpus (11)

• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Light nuclei quasiparticle energy shift in hot and dense nuclear matter
• Beam energy dependence of (anti-)deuteron production in Au+Au collisions at RHIC
• Measurement of deuteron spectra and elliptic flow in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}$ = 2.76 TeV at the LHC
• Beam Energy dependence of Light Nuclei Production in Au+Au Collisions
• Light nuclei production in Au + Au collisions at $\sqrt{s_{NN}}$ = 7.7-80 GeV from UrQMD model
• Formation of exotic baryon clusters in ultra-relativistic heavy-ion collisions
• Effects of QCD critical point on light nuclei production
• Light nuclei in the hadron resonance gas
• Update of the Three-fluid Hydrodynamics-based Event Simulator: light-nuclei production in heavy-ion collisions

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