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Physical Information in the Thermal Continuum Dilepton Spectra

arXiv:hep-ph/9811403 · doi:10.1016/S0146-6410(99)00091-5

Abstract

We consider the intermediate mass continuum of dileptons (between $ϕ$ and $J/ψ$) in ultrarelativistic heavy--ion collisions. The thermal signal depends essentially on thermodynamic state parameters of the hottest parton stage as $(τ_iλ^q_iT_i^3)^2$ convoluted with an involved detector acceptance function. A refined analysis of the transverse pair momentum spectrum at fixed dilepton transverse mass can reveal the maximum temperature of parton matter.

3 LaTeX pages including eps figures, contribution to the Erice School on Nuclear Physics 1998 (to be published in "Progress in Particle and Nuclear Physics")