New phases in CFL quark matter

Details New phases in CFL quark matter New phases in CFL quark matter

2004-04-30

arxiv.org/abs/hep-ph/0404290v1

Phys.Rev. D71 (2005) 034004

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures

Scientific paper

10.1103/PhysRevD.71.034004

We consider order $\alpha_s$ corrections to the squared masses of the pseudo-Goldstone excitations about the ground state of dense quark matter. We show that these contributions tend to destabilize the vacuum, leading to a surprisingly complex phase structure for quark matter as a function of quark mass, even for small $\alpha_s$. In particular we find two new phases of CFL quark matter possibly relevant for the real world, for which the QCD angle theta-bar equals pi/2.

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