Color-flavor locked phase of high density QCD at nonzero strange quark mass
- Department of Physics and Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195 (United States)
We compute free energy of quark matter at asymptotically high baryon number density in the presence of nonzero strange quark mass including dynamics of pseudo Nambu-Goldstone bosons due to chiral symmetry breaking, extending previously existing analysis based on perturbative expansion in m{sub s}{sup 2}/4{mu}{delta}. We demonstrate that the CFLK{sup 0} state has lower free energy than the symmetric CFL state for 0<m{sub s}{sup 2}/4{mu}{delta}<2/3. We also calculate the spectrum of the fermionic quasiparticle excitations about the kaon condensed ground state in the regime m{sub s}{sup 2}/4{mu}{delta}{approx}1 and find that (m{sub s}{sup 2}/4{mu}{delta}){sub crit}=2/3 for the CFL-gCFL phase transition, the leading order result reported in 20, is not modified.
- OSTI ID:
- 20705708
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 71, Issue 1; Other Information: DOI: 10.1103/PhysRevD.71.014011; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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