Spectral Continuity in Dense QCD

Details Spectral Continuity in Dense QCD Spectral Continuity in Dense QCD

2008-02-28

arxiv.org/abs/0802.4143v2

Phys.Rev.D78:011501,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1103/PhysRevD.78.011501

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.

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