Condition for gapless color-antitriplet excitations in NJL models
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
We present an exact condition for the existence of gapless quasiparticle excitations in NJL models of color superconducting quark matter with a quark-quark interaction in the scalar color-antitriplet channel. The condition can be represented by a rotated ellipse in the plane of mass and chemical potential differences for the paired quark fields.
Cite
@article{arxiv.hep-ph/0512087,
title = {Condition for gapless color-antitriplet excitations in NJL models},
author = {F. Sandin and A. M. Oztas},
journal= {arXiv preprint arXiv:hep-ph/0512087},
year = {2007}
}
Comments
Accepted for publication in PRC. 5 pages, 4 figures; Corrected typos and added one more term to the series expansion in (19)