Speaker
Description
At the LHC, the ALICE experiment has observed that the yield ratios of strange to non-strange hadrons increase with charged-particle multiplicity at midrapidity, following a smooth evolution across collision systems, spanning over three orders of magnitude in multiplicity and saturating in central Pb–Pb events. Various models have been proposed to explain the origin of strangeness production in small systems, including statistical hadronization with canonical suppression and color rope hadronization including color reconnection. Experimental efforts focus on identifying observables and phase-space regions where these models make distinct predictions in order to disentangle their underlying mechanisms.
In this contribution, we present the first measurement of strange-hadron production inside and outside fully reconstructed jets as a function of event multiplicity in pp collisions, exploiting the unprecedented statistics collected during Run 3. These results provide new insights into the relative roles of hard and soft QCD processes in shaping the observed evolution of strangeness production with multiplicity.
