High density quark matter and the renormalization group in QCD with two and three flavors

Thomas Schäfer, Frank Wilczek

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)325-331
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume450
Issue number4
DOIs
StatePublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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