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Low-Mass Dileptons from in-Medium Hadronic Interactions

R. Rapp
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Abstract

Medium Effects in low-mass dilepton production in ultra-relativistic heavy-ion collisions are investigated using hadronic models. The rescattering of pions and rho mesons within a hot and dense hadron gas leads to substantial modifications in the $π^+π^- \to e^+ e^-$ annihilation process, which are shown to be important for understanding the recently observed dilepton enhancement at the CERN-SpS. Possible implications for the nature of the chiral phase transition are outlined.

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R. Rapp. 1998-04-24. Low-Mass Dileptons from in-Medium Hadronic Interactions. https://arxiv.org/abs/nucl-th/9804065

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