Spectral Function of rho in Dense and Hot Hadronic Matter

Details Spectral Function of rho in Dense and Hot Hadronic Matter Spectral Function of rho in Dense and Hot Hadronic Matter

2002-02-08

arxiv.org/abs/nucl-th/0202026v3

JHEP 0211 (2002) 014

Physics

Nuclear Physics

Nuclear Theory

Revised version to be published, 10 pages, 8 figures

Scientific paper

10.1088/1126-6708/2002/11/014

The spectral function of rho meson in hot/dense hadronic matter is studied by taking into account the nucleon-loop on quantum hadrondynamics model level. Different from the hot pion gas effect which changes the spectral function slightly, the nucleon-antinucleon polarization (Dirac sea) makes the spectral function very sharp and shifted towards the low invariant mass region significantly due to the decreasing effective nucleon mass.

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