Symmetry conserving non-perturbative s-wave renormalization of the pion in hot and baryon dense medium

Details Symmetry conserving non-perturbative s-wave renormalization of the pion in hot and baryon dense medium Symmetry conserving non-perturbative s-wave renormalization of the pion in hot and baryon dense medium

1999-05-27

arxiv.org/abs/nucl-th/9905058v1

Phys.Rev. C60 (1999) 065211

Physics

Nuclear Physics

Nuclear Theory

Latex, 22 pages, 3 figures

Scientific paper

10.1103/PhysRevC.60.065211

A non-perturbative s-wave renormalization of the pion in a hot and baryon rich medium is presented. This approach proceeds via a mapping of the canonical pion into the axial Noether's charge. The mapping was made dynamical in the Hartree-Fock-Bogoliubov random phase approximation (HFB-RPA). It is shown that this approach, while order mixing, is still symmetry conserving both in the baryon free and baryon rich sectors, at zero as well as finite temperature. The systematic character of this approach is emphasized and it is particularly argued that it may constitute an interesting alternative for the non-perturbative assessment of the nuclear matter saturation properties.

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