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Phys. Rev. D 74, 074019 (2006) [4 pages]

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

O. Kiriyama
Institut für Theoretische Physik, J.W. Goethe-Universität, D-60438 Frankfurt am Main, Germany
Received 14 August 2006; published 25 October 2006

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 <gAz6> and calculate the Meissner mass from the potential curvature with respect to <gAz6>. 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.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.74.074019
DOI: 10.1103/PhysRevD.74.074019
PACS: 12.38.-t; 11.30.Qc; 26.60.+c
  • 12.38.-t
    Quantum chromodynamics
  • 11.30.Qc
    Spontaneous and radiative symmetry breaking in particles and fields
  • 26.60.+c
    Nuclear matter aspects of neutron stars
  • YEAR: 2006

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