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Meissner screening mass in two-flavor quark matter at nonzero temperature

O. Kiriyama
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Abstract

We calculate the Meissner screening mass of gluons 4--7 in two-flavor quark matter at nonzero temperature. To this end, we study the effective potential of the 2SC/g2SC phases including a vector condensate $ $ and calculate the Meissner mass from the potential curvature with respect to $ $. We find that the Meissner mass becomes real at the critical temperature which is about the half of the chemical potential mismatch. The phase diagram of the neutral two-flavor color superconductor is presented in the plane of temperature and coupling strength. We indicate the unstable region for gluons 4--7 on the phase diagram.

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O. Kiriyama. 2006-10-20. Meissner screening mass in two-flavor quark matter at nonzero temperature. https://doi.org/10.1103/physrevd.74.074019

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