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Dispersion relation of the $ρ$ meson in hot/dense nuclear matter

Ji-Sheng Chen·Jia-Rong Li·Peng-Fei Zhuang
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Abstract

The dispersion relation of $ρ$ meson in both timelike and spacelike regimes in hot and dense nuclear medium is analyzed and compared with $σ$ meson based on the quantum hadrodynamics model. The pole and screening masses of $ρ$ and $σ$ are discussed. The behavior of screening mass of $ρ$ is different from that of $σ$ due to different Dirac- and Fermi-sea contributions at finite temperature and density.

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Ji-Sheng Chen, Jia-Rong Li, Peng-Fei Zhuang. 2003-07-31. Dispersion relation of the $ρ$ meson in hot/dense nuclear matter. https://doi.org/10.1103/physrevc.67.068202

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