14-17 October 2009
Europe/Zurich timezone
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Recent STAR results of pion-proton femtoscopy

15 Oct 2009, 14:30
TH Auditorium (CERN)

TH Auditorium


Talk Strong Interaction and Coulomb-induced Correlations Non-identical correlations and squeezed states


Mr Marcin Zawisza (Warsaw University of Technology)


Correlations between non-identical particles at small relative velocity probe asymmetries in the average space-time emission points at freezeout. Such asymmetries may arise from long-lived resonances, bulk collective effects, or differences in the freezeout scenario for the different particle species. STAR has extracted pion-proton correlation functions from a high-statistics dataset of Au+Au collisions at $\sqrt{s_{NN}}=200GeV$. We present femtoscopic analysis using spherical-harmonics decomposition of this data for pions and protons, for collisions of different centrality. Preliminary quantitative results extracted from this data are presented for the first time.

Primary author

Mr Marcin Zawisza (Warsaw University of Technology)

Presentation Materials