Measurement of HΛ3 production in Pb–Pb collisions at sNN=5.02 TeV

ALICE Collaboration

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The first measurement of HΛ3 and H‾Λ‾3 differential production with respect to transverse momentum and centrality in Pb–Pb collisions at sNN=5.02 TeV is presented. The HΛ3 has been reconstructed via its two-charged-body decay channel, i.e., HΛ3→3He+π. A Blast-Wave model fit of the pT-differential spectra of all nuclear species measured by the ALICE collaboration suggests that the HΛ3 kinetic freeze-out surface is consistent with that of other nuclei. The ratio between the integrated yields of HΛ3 and He3 is compared to predictions from the statistical hadronisation model and the coalescence model, with the latter being favoured by the presented measurements.

Lingua originaleInglese
Numero di articolo139066
RivistaPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume860
DOI
Stato di pubblicazionePubblicato - gen 2025

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