TY - JOUR
T1 - High density quark matter and the renormalization group in QCD with two and three flavors
AU - Schäfer, Thomas
AU - Wilczek, Frank
N1 - Funding Information:
After this work was begun, we learned that the authors of [10] have also extended their study to include instanton operators. This work was supported in part by NSF-PHY-9513835.
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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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U2 - 10.1016/S0370-2693(99)00162-8
DO - 10.1016/S0370-2693(99)00162-8
M3 - Article
AN - SCOPUS:0008087310
SN - 0370-2693
VL - 450
SP - 325
EP - 331
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 4
ER -