Non-identical particle correlations in 130 and 200 AGeV collisions at STAR
Abstract
STAR has performed a correlation analyses of pion-kaon and pion-proton pairs for sqrt(s_NN)=130 AGeV and sqrt(s_NN)=200 AGeV and kaon-proton, proton-Lambda and pion-Cascade pairs for AuAu collisions sqrt(s_NN)=200 AGeV. They show that average emission space-time points of pions, kaons and protons are not the same. These asymmetries are interpreted as a consequence of transverse radial expansion of the system; emission time differences explain only part of the asymmetry. Therefore our measurements independently confirm the existence of transverse radial flow. Furthermore, correlations of strange hyperons is investigated by performing proton-Lambda and pion-Cascade analyses, giving estimates of source size at high m_{T}. The strong interaction potential between (anti-)proton and lambda as well as kaon and proton is investigated.
Keywords
Cite
@article{arxiv.nucl-ex/0403042,
title = {Non-identical particle correlations in 130 and 200 AGeV collisions at STAR},
author = {A. Kisiel},
journal= {arXiv preprint arXiv:nucl-ex/0403042},
year = {2019}
}
Comments
5 pages, 3 figures, Quark Matter 04 proceedings, submitted to J. Phys. G: Nucl. Phys