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arXiv · hep-ph/0303131

Pion broadening and low-mass dilepton production

H. -J. Schulze·D. Blaschke
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Abstract

We determine mass and transverse momentum spectra of dileptons produced in Pb+Au (158 GeV/u) collisions within a pion annihilation model. A fit to the data requires simultaneous mass reduction and broadening of the in-medium rho propagator. The introduction of a finite pion width, as required within self-consistent approaches to the interacting pion gas, further improves the agreement with the data.

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H. -J. Schulze, D. Blaschke. 2003-03-14. Pion broadening and low-mass dilepton production. https://arxiv.org/abs/hep-ph/0303131

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