Effective lagrangians for QCD at high density
High Energy Physics - Theory
2009-11-07 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We describe low energy physics in the CFL and LOFF phases by means of effective lagrangians. In the CFL case we present also how to derive expressions for the parameters appearing in the lagrangian via weak coupling calculations taking advantage of the dimensional reduction of fermion physics around the Fermi surface. The Goldstone boson of the LOFF phase turns out to be a phonon satisfying an anisotropic dispersion relation.
Keywords
Cite
@article{arxiv.hep-th/0108195,
title = {Effective lagrangians for QCD at high density},
author = {Roberto Casalbuoni},
journal= {arXiv preprint arXiv:hep-th/0108195},
year = {2009}
}
Comments
LaTex 10 pages. No figures. Invited talk at the Conference "QCD@work", Martinafranca (Bari), June 16-20, 2001