https://doi.org/10.1051/epjconf/202531605006
Production of Light Nuclei in Au+Au Collisions with the STAR BES-II Program
Institute of Particle Physics and Key Laboratory of Quark & Lepton Physics (MOE), Central China Normal University, Wuhan, 430079, China.
* e-mail: jyx@mails.ccnu.edu.cn
Published online: 27 January 2025
The yields and ratios of light nuclei in heavy-ion collisions offer a method to distinguish between the thermal and coalescence models. Ratios such as Nt × NP / Nd2 and N3He × Np / Nd2 are suggested as potential probes to investigate critical phenomena within the QCD phase diagram. The significantly larger datasets from STAR BES-II compared to BES-I, combined with enhanced detector capabilities, allow for more precise measurements. In this proceeding, we present the centrality and energy dependence of transverse momentum spectra and particle yields of (anti-)proton, (anti-)deuteron, and 3He at BES-II energies (√sNN = 7.7 — 27 GeV), as well as the light nuclei to proton yield ratios and coalescence parameters (B2 (d) and B3 (3 He)).
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
