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This research use the AMPT model in Au+Au collisions to study the influence of the three nucleons correlation C₍₂ on the light nuclei yield ratios. It is found that neglecting C₍₂ leads to an overestimated relative neutron density fluctuation extraction. Including C₍₂ will enhances the agreement with experimental results with higher yield ratios, yet it does not change the energy dependence of the yield ratio. Since there is no first-order phase transition or critical physics in the AMPT model, our work fails to reproduce the experimental energy-dependent peak around sNN = 20-30 GeV. Our work might offer a baseline for investigating critical physics phenomena using the light nuclei production as a probe.
Yu et al. (Sun,) studied this question.