Chromomagnetic instability in two-flavor quark matter at nonzero temperature

Details Chromomagnetic instability in two-flavor quark matter at nonzero temperature Chromomagnetic instability in two-flavor quark matter at nonzero temperature

2006-09-19

arxiv.org/abs/hep-ph/0609185v2

Phys.Rev.D74:114011,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 10 figures, revisions to text, published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.74.114011

We calculate the effective potential of the 2SC/g2SC phases including vector condensates ($$ and $$) and study the gluonic phase and the single plane-wave Larkin-Ovchinnikov-Fulde-Ferrell state at nonzero temperature. Our analysis is performed within the framework of the gauged Nambu--Jona-Lasinio model. We compute potential curvatures with respect to the vector condensates and investigate the temperature dependence of the Meissner masses squared of gluons of color 4--7 and 8 in the neutral 2SC/g2SC phases. The phase diagram is presented in the plane of temperature and coupling strength. The unstable regions for gluons 4--7 and 8 are mapped out on the phase diagram. We find that, apart from the case of strong coupling, the 2SC/g2SC phases at low temperatures are unstable against the vector condensation until the temperature reaches tens of MeV.

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