Generalized Pions in Dense QCD

Abstract

QCD superconductors in the color-flavor-locked (CFL) phase sustain light Goldstone modes (that will be referred to as generalized pions) that can be described as pairs of particle and/or hole excitations around a gapped Fermi surface. In weak coupling and to leading logarithm accuracy, their form factor, mass and decay constant can be evaluated exactly. These modes are found to satisfy an axial-Ward-identity, constraining the mass of the Goldstone modes in the CFL phase.

13 pages, 4 figures, version to be published in PLB

References in corpus (8)

• QCD at Finite Baryon Density: Nucleon Droplets and Color Superconductivity
• Superconductivity by long-range color magnetic interaction in high-density quark matter
• Continuity of Quark and Hadron Matter
• Superconductivity from perturbative one-gluon exchange in high density quark matter
• Effective Theory for Color-Flavor Locking in high Density QCD
• Propagation of Cool Pions
• Superfluidity in a Model of Massless Fermions Coupled to Scalar Bosons
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Cited by in corpus (54)

• Color superconductivity in dense quark matter
• High Density Quark Matter under Stress
• Novel phases and transitions in Color Flavor Locked matter
• Inverse meson mass ordering in color-flavor-locking phase of high density QCD: erratum
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• Properties of neutral mesons in a hot and magnetized quark matter
• Color Superconductivity at Moderate Baryon Density
• Instanton Effects in QCD at High Baryon Density
• Neutrino Emission from Goldstone Modes in Dense Quark Matter
• The Transition Temperature to the Superconducting Phase of QCD at High Baryon Density
• Neutrino Propagation In Color Superconducting Quark Matter
• Debye screening and Meissner effect in a three-flavor color superconductor
• Effective Description of QCD at Very High Densities
• Kaon Condensation in High Density Quark Matter
• Mass Terms in Effective Theories of High Density Quark Matter
• Neutrino Rates in Color Flavor Locked Quark Matter
• Dispersion Laws for Goldstone Bosons in a Color Superconductor
• Dispersion Laws for In-medium Fermions and Gluons in the CFL Phase of QCD
• On the Applicability of Weak-Coupling Results in High Density QCD
• Chiral and Gravitational Anomalies on Fermi Surfaces
• Generalized Mesons in Dense QCD
• Systematic Low-Energy Effective Theory for Magnons and Charge Carriers in an Antiferromagnet
• Neutrino scattering off pair-breaking and collective excitations in superfluid neutron matter and in color-flavor locked quark matter
• Continuity of vortices from the hadronic to the color-flavor locked phase in dense matter
• Photon Self-Energy in a Color Superconductor
• Kaon Condensation in a Nambu--Jona-Lasinio (NJL) Model at High Density
• An Effective Theory for Baryons in the CFL Phase
• Static properties of chiral models with SU(3) group structure
• Low Energy Theory for 2 flavors at High Density QCD
• Critical Line for H-Superfluidity in Strange Quark Matter?
• Bethe-Salpeter equation for diquarks in color-flavor locked phase of cold dense QCD
• Impacts of anomaly on nuclear and neutron star equation of state based on a parity doublet model
• Diquarks in cold dense QCD with two flavors
• Quark description of the Nambu-Goldstone bosons in the color-flavor locked phase
• Collective modes of color-flavor locked phase of dense QCD at finite temperature
• Pseudoscalar Goldstone bosons in the color-flavor locked phase at moderate densities
• QCD at high density/temperature
• Radiative mass in QCD at high density
• Sum Rules in the CFL Phase of QCD at finite density
• Pi0 -> Gamma Gamma in Dense QCD
• Electroweak Physics for Color Superconductivity
• Collective excitations in a superfluid of color-flavor locked quark matter
• The shear viscosity of two-flavor crystalline color superconducting quark matter
• Bosonization of QCD at high density
• Color superconductivity and nondecoupling phenomena in 2+1 dimensional QCD
• Massive quark effects in two flavor color superconductors
• Pseudo Nambu-Goldstone modes in neutron stars
• Pseudoscalar bosonic excitations in the color-flavor locked phase at moderate densities
• Diquark composites in the color superconducting phase of two flavor dense QCD
• Color-SU(3)-Ginzburg-Landau Effective Potential for Order Parameter with $3\times 3$ Symmetry
• BCS vs Overhauser pairing in dense (2+1)d QCD
• Generalized Nambu-Goldstone pion in dense matter: a schematic NJL model
• Anisotropic Propagator for the Goldstone Modes in Color-flavor Locked Phase in the Presence of a Magnetic Field
• Phenomenological QCD equations of state for neutron star mergers