P-Wave Polarization of the $ρ$-Meson and the Dilepton Spectrum in Dense Matter

Details P-Wave Polarization of the $ρ$-Meson and the Dilepton Spectrum in Dense Matter P-Wave Polarization of the $ρ$-Meson and the Dilepton Spectrum in Dense Matter

1997-01-08

arxiv.org/abs/nucl-th/9701016v1

Nucl.Phys. A617 (1997) 496-509

Physics

Nuclear Physics

Nuclear Theory

22 pages, 8 Postscript figures, uses article.sty, epsf.sty, epsfig.sty

Scientific paper

10.1016/S0375-9474(97)00050-X

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.

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