Home > Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation |
Article | |
Report number | hep-ph/0302077 ; BARI-TH-458-03 ; CERN-TH-2003-024 ; UGVA-DPT-2003-02-1105 ; CERN-TH-2003-024 |
Title | Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation |
Related title | Quantum chromodynamics |
Author(s) | Casalbuoni, R. (CERN) ; Gatto, Raoul (Geneva U.) ; Nardulli, G. (Bari U. ; INFN, Bari) ; Ruggieri, M. (CERN ; Bari U. ; INFN, Bari) |
Publication | 2003 |
Imprint | 11 Feb 2003 |
Number of pages | 17 |
In: | Phys. Rev. D 68 (2003) 34024 |
DOI | 10.1103/PhysRevD.68.034024 |
Subject category | Particle Physics - Phenomenology |
Abstract | We study two aspects of the CFL phase of QCD in the NJL approximation. The first one is the issue of the dependence on \mu of the ultraviolet cutoff in the gap equation, which is solved allowing a running coupling constant. The second one is the dependence of the gap on the strange quark mass: using the high density effective theory we perform an expansion in the parameter (m_s/\mu)^2 after checking that its numerical validity is very good already at first order. |