A remark on the low mass dilepton yield in heavy ion collisions

Abstract

The recent data on the enhancement of the low mass dilepton yield in heavy ion collisions are interpreted as an effect of the "prolonged life" of resonances in the hadron gas phase. The value of the enhancement factor gives an upper limit for the duration time of this phase.

Comments: Minor changes in text, one reference added. Version to be published in the XXXVI ISMD proceedings, Brazilian Journal of Physics