Production of K0S and Lambda in p-Pb Collisions at sqrt(s_NN)=5.02 TeV Measured with the ALICE Detector at the LHC

Abstract: This thesis presents an analysis of the production of K_S^0 and Λ particles in p-Pb collisions at a center of mass collision energy of sqrt(s_NN) = 5.02 TeV, measured with the ALICE detector at the LHC, CERN. The p_T spectra as well as the baryon-to-meson yield ratio Λ/K_S^0, for p_T <= 15 GeV/c, are investigated and compared for different centrality bins. The results are compared to those from Pb-Pb collisions, where the yield ratio shows pp-like behaviors for peripheral collisions while for central collisions an enhancement of Λ with respect to K_S^0 is seen at intermediate p_T. This enhancement is, to our current knowledge, explained by effects of radial flow at low and mid-p_T combined with processes like recombination during the hadronization of the created medium -- the Quark Gluon Plasma. The results of p-Pb show similar features to those of Pb-Pb, but on a smaller scale.