Significant in-medium reduction of the mass of eta' mesons in sqrt(s(NN)) = 200 GeV Au+Au collisions

Abstract

PHENIX and STAR data on the intercept parameter of the two-pion Bose-Einstein correlation functions in $\sqrt{s_{NN}}=200$ GeV Au+Au collisions were analysed in terms of various models of hadronic abundances. To describe these data, an in-medium ${\eta }^{\prime }$ mass decrease of at least 200 MeV was needed in each case.

Dedicated to 60th birthday of Miklos Gyulassy. 2 pages, 4 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee

Cited by in corpus (8)

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• A renewed look at eta' in medium
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• Chiral and U_A(1) symmetry in correlation functions in medium
• Critical Opalescence: An Optical Signature for a QCD Critical Point
• Tagging of eta' decay products to analyze chiral restoration
• A method of eta' decay product selection to study partial chiral symmetry restoration