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    Production correlation of light (hyper-)nuclei in Au-Au collisions from the RHIC Beam Energy Scan

    Jiang-He Qiao, Jian-Yu Liu, Yan-Ting Feng, Feng-Lan Shao, and Rui-Qin Wang*

    • *Contact author: wangrq@qfnu.edu.cn

    Phys. Rev. C 114, 034919 – Published 25 September, 2026

    DOI: https://doi.org/10.1103/lymg-t1fv

    Abstract

    Based on nucleons (p, n) and hyperons (Λ, Ω−) formed at kinetic freeze-out from a quark combination model, we systematically study the production of light nuclei and hypernuclei in the hadronic coalescence picture. We present the analytical formula of the nucleus momentum distribution of two-body coalescence and that of three-body coalescence. We explain the experimental data of the transverse momentum spectra of deuteron (d), triton (t), helium-3 (He3), and hypertriton (HΛ3) measured in Au-Au collisions from the RHIC Beam Energy Scans I and II, and also provide the corresponding predictions of different Ω−hypernuclei H(pΩ−), H(nΩ−), and H(pnΩ−). We further study the production correlations of different species of light (hyper-)nuclei and discuss their interesting behaviors as a function of collision energy.

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