Spectral Continuity in Dense QCD
High Energy Physics - Phenomenology
2008-11-26 v2 Nuclear Theory
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.
Cite
@article{arxiv.0802.4143,
title = {Spectral Continuity in Dense QCD},
author = {Tetsuo Hatsuda and Motoi Tachibana and Naoki Yamamoto},
journal= {arXiv preprint arXiv:0802.4143},
year = {2008}
}
Comments
4 pages, 3 figures; version to appear in Phys. Rev. D