Investigating the system size dependence of hypernuclei production with A < 5 using the ALICE detector

Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China

^* e-mail: yuanzhe.wang@cern.ch

Published online: 27 January 2025

Abstract

The production of (anti)hypernuclei is among the most promising probes for studying the production mechanism of light nuclei in high-energy hadronic collisions. According to coalescence predictions, the production of ³_ΛH, ⁴_ΛH, and ⁴_ΛHe is sensitive to their internal wave function. In contrast, the yields predicted with the Statistical Hadronitazion Models (SHM) are based on the mass of the (hyper)nuclei and the freeze-out temperature, with no explicit dependence on the nuclear structure. In these proceedings, the measurements of ³_ΛH, ⁴_ΛH, and ⁴_ΛHe from pp to central Pb–Pb collisions are presented. The results are based on the data samples collected by ALICE during the LHC Run 2 and Run 3. For the ³_ΛH, in addition, an innovative method to extract its properties based on the system size dependency of its production yield is also presented.