K0s and Λ production in Pb--Pb collisions with the ALICE experiment

Details K0s and Λ production in Pb--Pb collisions with the ALICE experiment K0s and Λ production in Pb--Pb collisions with the ALICE experiment

2011-09-22

arxiv.org/abs/1109.4807v2

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 4 figures, proceedings of Quark Matter 2011 (May 23rd-28th 2011, Annecy, France)

Scientific paper

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.

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