Chiral Lagrangians at finite density
High Energy Physics - Phenomenology
2009-11-07 v2 High Energy Physics - Lattice
High Energy Physics - Theory
Nuclear Theory
Abstract
The effective SU(2) chiral Lagrangian with external sources is given in the presence of non-vanishing nucleon densities by calculating the in-medium contributions of the chiral pion-nucleon Lagrangian. As a by product, a relativistic quantum field theory for Fermi many-particle systems at zero temperature is directly derived from relativistic quantum field theory with functional methods.
Cite
@article{arxiv.hep-ph/0101204,
title = {Chiral Lagrangians at finite density},
author = {Jose A. Oller},
journal= {arXiv preprint arXiv:hep-ph/0101204},
year = {2009}
}
Comments
6 Pages, 3 figures, REVTeX. Extended version. Explicit Feynman rules are given