Meissner masses in the gCFL phase of QCD

We calculate the Meissner masses of gluons in neutral three-flavor color superconducting matter for finite strange quark mass. In the CFL phase the Meissner masses are slowly varying function of the strange quark mass. For large strange quark mass, in the so-called gCFL phase, the Meissner masses of...

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Bibliographic Details
Published in:Physics letters. B 2005-01, Vol.605 (3-4), p.362-368
Main Authors: Casalbuoni, R., Gatto, R., Mannarelli, M., Nardulli, G., Ruggieri, M.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Quantum chromodynamics
Specific theories and interaction models
particle systematics
The physics of elementary particles and fields
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Summary:We calculate the Meissner masses of gluons in neutral three-flavor color superconducting matter for finite strange quark mass. In the CFL phase the Meissner masses are slowly varying function of the strange quark mass. For large strange quark mass, in the so-called gCFL phase, the Meissner masses of gluons with colors a=1,2 become imaginary, indicating an instability.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2004.11.045