The VII-th International Conference on the Initial Stages of High-Energy Nuclear Collisions : Initial Stages 2023

New experimental observables to study (anti)nucleosynthesis with ALICE

Not scheduled

20m

Copenhagen

Poster The initial stages and nuclear structure in heavy-ion collisions

Speaker

ALICE CC Chairs

Description

The production of light (anti)nuclei in heavy-ion collisions has been extensively studied both experimentally and theoretically for many decades. Two competing models, the statistical hadronisation model (SHM) and the nucleon coalescence model, are commonly used to describe the yields and ratios of light (anti)nuclei to other hadrons in heavy-ion collisions.

Recently, the ALICE collaboration has measured antideuteron number fluctuations on an event-by-event basis in heavy-ion collisions. This measurement can be used as an additional test to distinguish between the competing SHM and coalescence models. Moreover, we use antinuclei-to-nuclei ratios, besides the ratios of other hadron species, to measure ${\mu }_B$ with unprecedented precision, profitig of the high sensitivity of light (anti)nuclei, which have a large baryon number, to the baryon chemical potential in heavy-ion collisions.