Higher order corrections to Color superconducting gaps
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
We find a (nonlocal) gauge where the wavefunction renormalization constant does not get any corrections for all momenta in the hard-dense loop approximation. In this gauge, we solve the Schwinger-Dyson equations for the diquark condensate in dense QCD to calculate the Cooper pair gap. We determine not only the exponent but also the prefactor of the gap in a gauge independent way. We find that the higher order corrections increase the gap only by about 1.6 times to the leading order gap at Coulomb gauge.
Cite
@article{arxiv.hep-ph/0303181,
title = {Higher order corrections to Color superconducting gaps},
author = {Deog Ki Hong and Taekoon Lee and Dong-Pil Min and D. Seo and Chaejun Song},
journal= {arXiv preprint arXiv:hep-ph/0303181},
year = {2009}
}
Comments
9 pages, 2 figures, RevTeX, Minor modifications