SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 71: Structure and Dynamics of Nuclei XVI

HK 71.3: Vortrag

Donnerstag, 23. März 2023, 16:30–16:45, SCH/A117

Improved coalescence model for (anti)nuclei formation — •Maximilian Horst — Technical University Munich

In accelerator experiments, the production of light (anti)nuclei such as (anti)deuterons and (anti)helium-3 can be studied in a wide range of collision systems, from small (pp) to large (A–A) emission source sizes. However, the microscopic mechanism through which they are produced and how they survive such hot and turbulent conditions, are still unknown. The most commonly used models to describe this process are the statistical hadronization model and the coalescence approach. In this talk, a state-of-the-art coalescence model based on the Wigner function formalism to describe (anti)nuclear production on an event-by-event basis is presented. The model developed in this work is parameter-free and tuned on experimental measurements of nucleon production spectra and of the emitting source size measured with ALICE. Such a model would find application in astroparticle physics to predict (anti)nuclear fluxes in cosmic rays, which are a crucial ingredient for indirect Dark Matter searches. This work was supported by DFG SFB1258 and BMBF Verbundforschung (05P21WOCA1 ALICE).