CERN Accelerating science

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 titleQuantum 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.

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 Record created 2003-02-12, last modified 2023-03-14


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