K0s and \Lambda\ production in Pb--Pb collisions with the ALICE experiment

TL;DR

This paper analyzes K0s and Lambda particle production in Pb--Pb collisions at the LHC, comparing results with proton-proton and Au--Au collisions to understand particle ratios and production mechanisms at high energies.

Contribution

It provides new measurements of baryon/meson ratios in Pb--Pb collisions at 2.76 TeV, extending the understanding of particle production at high energies.

Findings

Baryon/meson ratios vary with transverse momentum and collision centrality.

Comparison shows differences between Pb--Pb, pp, and Au--Au collision results.

Results support models of particle production and hadronization in heavy-ion collisions.

Abstract

We present the study of K0s and Lambda production performed with the ALICE experiment at the LHC in Pb--Pb collisions at \sqrt{s_NN}=2.76 TeV and pp collisions at \sqrt{s}=0.9 and 7 TeV. The K0s and Lambda particles are reconstructed via their V0 decay topology allowing their identification up to high transverse momenta. The corresponding baryon/meson ratios as a function of transverse momentum are extracted for Pb--Pb collisions in centrality bins and in the transverse momentum range from 1 to 6 GeV/c. They are also compared with those measured in pp events at the LHC energies of 0.9 and 7 TeV as well as in Au--Au collisions at \sqrt{s_NN} = 62.4 and 200 GeV from RHIC.