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Phys. Rev. D 71, 034004 (2005) [4 pages]

New phases in color-flavor-locked quark matter

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Andrei Kryjevski* and David B. Kaplan†
Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195, USA

Thomas Schäfer‡
Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
and Riken-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11793, USA

Received 8 June 2004; published 2 February 2005

We consider O(αs) 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 αs. In particular we find two new phases of CFL quark matter possibly relevant for the real world, for which θ̅ QCD=π/2.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.034004
DOI:
10.1103/PhysRevD.71.034004
PACS:
12.38.Aw, 03.75.Hh, 26.60.+c

*abk4@phys.washington.edu

†dbkaplan@phys.washington.edu

‡thomas_schaefer@ncsu.edu

 
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