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arxiv hep-ph/9810509 v1 pith:HYELYXGA submitted 1998-10-28 hep-ph nucl-th

High Density Quark Matter and the Renormalization Group in QCD with two and three flavors

classification hep-ph nucl-th
keywords asymptoticallyequationsflavorsinteractionsoperatorsrenormalizationthreearguments
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider the most general four fermion operators in QCD for two and three massless flavors and study their renormalization in the vicinity of the Fermi surface. We show that, asymptotically, the largest coupling corresponds to scalar diquark condensation. Asymptotically the direct and iterated (molecular) instanton interactions become equal. We provide simple arguments for the form of the operators that diagonalize the evolution equations. Some solutions of the flow equations exhibit instabilities arising out of purely repulsive interactions.

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