1999/12/20 by William E. Brown, James T. Liu, Hai-cang Ren · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #cond-mat.supr-con #hep-ph #hep-th #nucl-th
paper · pdf · doi:10.1103/physrevd.62.054016
published as Phys.Rev. D62 (2000) 054016 · 37 pages, 5 figures (revtex v3.1)
arxiv created 1999/12/20 · openalex publication_date 2000/08/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recent interest in the study of color superconductivity has focused on the regime of high baryon density where perturbative QCD may be employed. Based on the dominant one-gluon-exchange interaction, both the transition temperature and zero temperature gap have been determined to leading order in the coupling g. While the leading non-BCS behavior TC\ensuremath∼\ensuremathμg^\ensuremath-5e^\ensuremath-\ensuremathκ/g is easily obtained, the pre-exponential factor has proved more difficult to evaluate. Focusing on the transition temperature, we present a perturbative derivation of this factor, exact to leading order in g. This approach is first motivated by the study of a toy model and involves working to second order in the perturbative expansion. We compare this result to the zero temperature gap. Additionally, we extend the analysis to the case of higher angular momentum for longitudinal and transverse quark pairing.