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Spectral Function of rho in Dense and Hot Hadronic Matter

Ji-sheng Chen·Jia-rong Li·Peng-fei Zhuang
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Abstract

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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Ji-sheng Chen, Jia-rong Li, Peng-fei Zhuang. 2002-11-08. Spectral Function of rho in Dense and Hot Hadronic Matter. https://doi.org/10.1088/1126-6708%2F2002%2F11%2F014

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