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arXiv · 0905.2803

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

R. Vertesi·T. Csorgo·J. Sziklai
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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 $η^\prime$ mass decrease of at least 200 MeV was needed in each case.

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R. Vertesi, T. Csorgo, J. Sziklai. 2009-10-08. Significant in-medium reduction of the mass of eta' mesons in sqrt(s(NN)) = 200 GeV Au+Au collisions. https://doi.org/10.1016/j.nuclphysa.2009.10.112

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