Quark Matter 2025

Resolving cluster production with the help of elliptic flow

Not scheduled

20m

Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Poster Light and strange flavor physics & nuclei Poster session 2

Speaker

Boris Tomasik (Czech Technical University in Prague (CZ))

Description

We argue that the actual production mechanism of deuterons and larger nuclear clusters - coalescence or direct thermal production - can be resolved with the help of elliptic flow. Coalescence is sensitive to the spatial extension of cluster wave function and therefore reflects the change of the size of producing homogeneity region when looking at cluster production in different azimuthal directions. We verify this idea with the help of Monte Carlo model that simulates emission of hadrons from a parametrised freeze-out hypersurface. The model is tuned on pt spectra and elliptic flow of hadrons, and includes decays of resonances. Comparison of v2 predictions for deuterons for the two mechanisms from a hybrid dynamical model (TRENTO + vHLLE + SMASH) is also presented.