Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-09-15
Phys.Rev. C62 (2000) 024604
Physics
Nuclear Physics
Nuclear Theory
26 pages, 7 figures included, Latex file
Scientific paper
10.1103/PhysRevC.62.024604
We discuss medium modifications of the unitarized pion-pion interaction in the nuclear medium. We incorporate both the effects of chiral symmetry restoration and the influence of collective nuclear pionic modes originating from the p-wave coupling of the pion to delta-hole configurations. We show in particular that the dropping of the sigma meson mass significantly enhances the low energy structure created by the in-medium collective pionic modes.
Chanfray Guy
Davesne Dany
Zhang Yu-Jie
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