New results related to QGP-like effects in small systems with ALICE

TL;DR

This paper reports on strange particle production in high-energy proton-proton collisions, revealing patterns similar to larger systems and indicating possible QGP-like effects in small systems.

Contribution

It provides new measurements of strange hadron production at 7 TeV and compares them across different collision systems, highlighting QGP-like phenomena in small systems.

Findings

Spectral shapes evolve with multiplicity similarly to larger systems

Strangeness enhancement observed in pp and p-Pb collisions

Results support possible QGP-like effects in small systems

Abstract

Results on the production of $\pi^{\pm}$, $\textrm{K}^{\pm}$, $\textrm{p}(\bar{\textrm{p}})$, $\Lambda(\bar{\Lambda})$, $\Xi^{-} \left(\bar{\Xi}^{+}\right)$ and $\Omega^{-} \left(\bar{\Omega}^{+}\right)$ at midrapidity (${|y|<0.5}$) as a function of multiplicity in $\sqrt{s}~=~7~\textrm{TeV}$ pp collisions are reported. Transverse momentum distributions and integrated yields are compared to expectations from statistical hadronization models along with results from different colliding systems and center-of-mass energies. The evolution of spectral shapes with multiplicity show similar patterns to those seen in p-Pb and Pb-Pb collisions. The $p_{\textrm{T}}$-integrated baryon yields relative to pions exhibit a significant strangeness-related enhancement in both pp and p-Pb collisions.