Speaker
Misha Veldhoen
(Utrecht University)
Description
An important open question regarding hadronization in heavy-ion collisions is to understand the baryon enhancement at intermediate pT observed at RHIC. In this work we analyze the p/π ratio in the associated yield (pT < 5.0 GeV/c) correlated to a high-pT trigger (pT > 5.0 GeV/c) in central Pb–Pb collisions. For this analysis we used Pb–Pb data taken by the ALICE detector at a center of mass energy of √s_NN = 2.76 TeV.
We measure the p/π ratio in the near-side jet peak, as well as in the near-side ridge region at large ∆η, to distinguish between hadrons originating from hard partons and hadrons originating from the hot and dense QCD medium. We observe that at intermediate pT the p/π ratio in the jet peak is much lower than in the ridge region.
Primary author
Misha Veldhoen
(Utrecht University)
