The phi meson at high temperatures and densities

Details The phi meson at high temperatures and densities The phi meson at high temperatures and densities

2009-07-30

arxiv.org/abs/0907.5385v1

Phys.Rev.C80:044907,2009

Physics

Nuclear Physics

Nuclear Theory

12 pages, 8 figures

Scientific paper

10.1103/PhysRevC.80.044907

The spectral density of the phi meson in a hot bath of nucleons and pions is calculated by relating the vector meson self-energy to the forward scattering amplitude, which is constrained by experimental data. Dispersion techniques are used to verify the relationship between real and the imaginary parts of the in-medium self energy. The position of the spectral peak of the phi meson is found to be shifted from its vacuum position by only a small amount, but its width is considerably increased.

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