Köln 2025 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 30: Heavy-Ion Collisions and QCD Phases V
HK 30.2: Talk
Wednesday, March 12, 2025, 16:15–16:30, HS 3 Chemie
Statistical hadronization of hypertriton and other loosely bound nuclei — •Hjalmar Brunßen — Physikalisches Institut, Universität Heidelberg
While compact objects such as hadrons can be treated as point-like particles in the hadronization, this is not an adequate description for loosely bound (hyper-)nuclei. In these cases the spatial extension of the wavefunction matters when calculating production yields. Especially in the case of the hypertriton, where the rms radius is of similar size as the fireball, this effect leads to a major correction in the production yield.
This talk presents how the size of (hyper-)nuclei can be incorporated in a calculation of production yields. In particular, the effect of this correction due to the (hyper-)nucleus-size as a function of the fireball size is discussed. Results of the size-corrected production yield are compared to experimental data from the ALICE experiment for various collision systems. Production yield ratios of Λ3H/Λ, Λ3H/3He as well as d/p as a function of dNch/dη are presented.
Keywords: Statistical Hadronization Model; Hypertriton; ALICE