P-Wave Polarization of the ρ-Meson and the Dilepton Spectrum in Dense Matter
Bengt Friman, H. J. Pirner
Abstract
We study the p-wave polarization operator of the ρ-meson due to ρN interactions via the N* (1720) and Δ(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.
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