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FRI: Friday Contributed Sessions

FRI 3: Quantum Chaos

FRI 3.5: Talk

Friday, September 12, 2025, 11:45–12:00, ZHG003

Statistical Hadronization of Loosely Bound Nuclei — •Hjalmar Brunßen — Physikalisches Institut, Universität Heidelberg

It has been shown that the statistical hadronization model (SHM) yields an excellent description of hadron and light-nucleus yields in heavy-ion collisions at the LHC. While the yields of hadrons are in general well understood, the hadronization of nuclei is a very active research topic. In particular, the hypertriton, whose wavefunction is similar in size to the entire fireball, represents an ideal probe to test the production mechanism of nuclei.

This talk presents an approach for incorporating the size of loosely bound nuclei into the SHM calculation of production yields, focusing on hypertriton, deuteron and helium-3 nuclei. For this, the finite spatial extent of the wavefunction is considered, which leads to a significant correction relative to a point-like treatment, especially in small collision systems. We test the approach by comparing its predictions with data from ALICE and STAR.

Keywords: Nuclei; Hadronization; Hypertriton; Heavy-Ion Collisions; ALICE