Spectral Continuity in Dense QCD

Abstract

The vector mesons in three-flavor quark matter with chiral and diquark condensates are studied using the in-medium QCD sum rules. The diquark condensate leads to a mass splitting between the flavor-octet and flavor-singlet channels. At high density, the singlet vector meson disappears from the low-energy spectrum, while the octet vector mesons survive as light excitations with a mass comparable to the fermion gap. A possible connection between the light gluonic modes and the flavor-octet vector mesons at high density is also discussed.

4 pages, 3 figures; version to appear in Phys. Rev. D

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Cited by in corpus (16)

• The phase diagram of dense QCD
• Hadron properties in the nuclear medium
• Vortices and Other Topological Solitons in Dense Quark Matter
• The NJL model of dense three-flavor matter with axial anomaly: the low temperature critical point and BEC-BCS diquark crossover
• Continuity of vortices from the hadronic to the color-flavor locked phase in dense matter
• Dense QCD in a Finite Volume
• Effective repulsion in dense quark matter from non-perturbative gluon exchange
• Confined Monopoles Induced by Quantum Effects in Dense QCD
• Instanton-induced crossover in dense QCD
• Continuity from neutron matter to two-flavor quark matter with ${}^1{S}_0$ and ${}^3{P}_2$ superfluidity
• Non-Abelian Alice strings in two-flavor dense QCD
• Magnetic Tuning of the Relativistic BCS-BEC Crossover
• Topological confinement of vortices in two-flavor dense QCD
• Equation of State in a Strongly Interacting Relativistic System
• BCS-BEC Crossover and Stability in a Nambu-Jona-Lasinio Model with Diquark-Diquark Repulsion
• Alice meets Boojums in neutron stars: vortices penetrating two-flavor quark-hadron continuity