Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-10-28
Phys.Lett. B450 (1999) 325-331
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 2 figures
Scientific paper
10.1016/S0370-2693(99)00162-8
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.
Schaefer Thomas
Wilczek Frank
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