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

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

2002-09-16

arxiv.org/abs/nucl-th/0209043v4

Phys.Rev. C67 (2003) 068202

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures, identical to published version

Scientific paper

10.1103/PhysRevC.67.068202

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

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