Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation

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...

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Detalles Bibliográficos
Autores principales: Casalbuoni, R., Gatto, Raoul, Nardulli, G., Ruggieri, M.
Lenguaje:eng
Publicado: 2003
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.68.034024
http://cds.cern.ch/record/604971
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author Casalbuoni, R.
Gatto, Raoul
Nardulli, G.
Ruggieri, M.
author_facet Casalbuoni, R.
Gatto, Raoul
Nardulli, G.
Ruggieri, M.
author_sort Casalbuoni, R.
collection CERN
description 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.
id cern-604971
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
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spelling cern-6049712023-03-14T19:49:08Zdoi:10.1103/PhysRevD.68.034024http://cds.cern.ch/record/604971engCasalbuoni, R.Gatto, RaoulNardulli, G.Ruggieri, M.Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximationParticle Physics - PhenomenologyWe 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.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.hep-ph/0302077BARI-TH-458-03CERN-TH-2003-024UGVA-DPT-2003-02-1105CERN-TH-2003-024oai:cds.cern.ch:6049712003-02-11
spellingShingle Particle Physics - Phenomenology
Casalbuoni, R.
Gatto, Raoul
Nardulli, G.
Ruggieri, M.
Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title_full Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title_fullStr Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title_full_unstemmed Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title_short Aspects of the Color Flavor Locking phase of QCD in the Nambu-Jona Lasinio approximation
title_sort aspects of the color flavor locking phase of qcd in the nambu-jona lasinio approximation
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.68.034024
http://cds.cern.ch/record/604971
work_keys_str_mv AT casalbuonir aspectsofthecolorflavorlockingphaseofqcdinthenambujonalasinioapproximation
AT gattoraoul aspectsofthecolorflavorlockingphaseofqcdinthenambujonalasinioapproximation
AT nardullig aspectsofthecolorflavorlockingphaseofqcdinthenambujonalasinioapproximation
AT ruggierim aspectsofthecolorflavorlockingphaseofqcdinthenambujonalasinioapproximation

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