P-WAVE POLARIZATION OF THE RHO-MESON AND THE DILEPTON SPECTRUM IN DENSE MATTER

摘要

We study the p-wave polarization operator of the rho-meson due to rho N interactions via the N*(1720) and Delta(1905) resonances and compute the corresponding production rate for e(+)e(-) pairs at finite temperature and baryon density. At high baryon density we find a significant shift of the spectrum to lower invariant masses. (C) 1997 Elsevier Science B.V. [References: 45]