Low-mass dileptons and dropping rho meson mass

Abstract

Using the transport model, we have studied dilepton production from heavy-ion collisions at Bevalac energies. It is found that the enhanced production of low-mass dileptons observed in the experiment by the DLS collaboration cannot be explained by the dropping of hadron masses, in particular the $\rho$-meson mass, in dense matter.

Comments: 9 pages, LaTeX, including 1 postscript figure, to appear in Phys. Lett. B