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arXiv · 0802.4143

Spectral Continuity in Dense QCD

Tetsuo Hatsuda·Motoi Tachibana·Naoki Yamamoto
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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.

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Tetsuo Hatsuda, Motoi Tachibana, Naoki Yamamoto. 2008-06-30. Spectral Continuity in Dense QCD. https://doi.org/10.1103/physrevd.78.011501

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