Chiral symmetry and mixing of axial and vector correlators in matter

Details Chiral symmetry and mixing of axial and vector correlators in matter Chiral symmetry and mixing of axial and vector correlators in matter

1997-08-15

arxiv.org/abs/hep-ph/9708365v1

Phys.Lett. B427 (1998) 13-18

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, Latex

Scientific paper

10.1016/S0370-2693(98)00309-8

The effect of mixing of the vector and axial vector correlation functions in the nuclear medium arising from the interaction of nuclear pions with corresponding interpolating currents is considered. It is shown that the mass difference between $\rho$ and $a_1$ meson gets smaller with the increase of the nuclear density reflecting the phenomena of partial restoration of chiral symmetry whereas the absolute values of meson masses may both decrease and increase in nuclear medium depending on the model used for the phenomenological spectral density.

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