2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198635We 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")High Energy Physics - Phenomenologytext