3–7 juin 2024
Université de Strasbourg / Palais de la Musique et des Congrès
Fuseau horaire Europe/Paris

Chasing the onset of QCD thermalisation with ALICE

4 juin 2024, 19:17
1m
Hall Schweitzer, ground floor (PMC)

Hall Schweitzer, ground floor

PMC

Poster Bulk matter phenomena, QCD phase diagram and Critical point Posters

Orateur

Mario Ciacco (Politecnico di Torino)

Description

Deciphering the hadronization process has long been a formidable challenge, in part due to its non-perturbative nature. Over the years, various phenomenological models have emerged, all attempting to unravel the complexity of hadron production. Despite their different theoretical foundations, many of these models successfully account for the average yield of hadrons. This has spurred the scientific community to search for innovative observables capable of discerning the fundamental principles governing these models. In pursuit of this goal, the ALICE Collaboration has studied an extensive set of Pearson correlations between hadrons with different quantum numbers. Conducting a system size scan of these measurements unveils a powerful means to identify and analyze emerging QCD phenomena in small collision systems. In this presentation, the latest findings on antiproton-antideuteron and net-kaon-net-Ξ correlations in different collision systems (pp, p–Pb and Pb–Pb) will be reported. These observables offer the unique advantage that they are not affected by resonances or weak decays. The measurements are compared with different hadronization models to investigate the intriguing topic of the onset of thermalization in QCD matter. Furthermore, the correlations are employed to estimate the correlation volume between hadrons stemming from the conservation of baryon and strange quantum numbers.

Auteur principal

Mario Ciacco (Politecnico di Torino)

Co-auteur

Documents de présentation