Speaker
Description
Light-nuclei production yields in heavy-ion collisions are well described in the frameworkof Statistical Hadronization Models (SHM) but a thorough understanding of the underlying dynamics is still missing. In a complementary approach, synthesis of light nuclei can be modeled in terms of final state coalescence of nucleons. While yielding an equally good description in heavy-ion collisions, coalescence predictions are substantially different to those from SHM in small collision systems, in particular for the loosely bound hypertriton. This should allow a firm distinction of the different production scenarios. Comprehensive data on light nuclei production in pp and p-Pb collisions became recently available from the ALICE collaboration and will be presented in this talk.
Alternatively, the dynamics of nuclear cluster formation may also be inferred from final-state momentum correlations of nucleons and light nuclei. A powerful framework for correlation analyses of final-state hadrons was developed in ALICE, yielding unique information on the characteristics of the hadron-emitting source and, more notable, on the mutual interaction between them. This so-called femtoscopy technique was recently applied to final-state momentum correlations between protons and deuterons, emerging from high-multiplicity pp collisions. The correlation results will be compared to predictions based on experimental scattering parameters and put into perspective with the available data on light nuclei and hypertriton production.
| Topic | Heavy Ion Physics |
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