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Seeing the QCD phase transition with phi mesons

M. Asakawa·C. M. Ko
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Abstract

A double phi peak structure in the dilepton invariant mass spectrum from ultrarelativistic heavy ion collisions is proposed as a signal for the phase transition from the quark-gluon plasma to the hadronic matter. The low mass phi peak results from the decay of phi mesons with reduced in-medium mass during the transition. Furthermore, the measurement of the transverse momentum distribution of these low mass phi mesons offers a viable means for determining the temperature of the phase transition.

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M. Asakawa, C. M. Ko. 1994-01-20. Seeing the QCD phase transition with phi mesons. https://doi.org/10.1016/0370-2693(94)90487-1

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