Chiral Lagrangian and spectral sum rules for two-color QCD at high density

Takuya Kanazawa, Tilo Wettig, Naoki Yamamoto

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


We report on our analytical study of two-color QCD with an even number of flavors at high baryon density. Based on the pattern of chiral symmetry breaking induced by BCS-type diquark pairing we construct the low-energy effective Lagrangian for the Nambu-Goldstone bosons. We also identify a new epsilon-regime at high baryon density and derive Leutwyler-Smilga-type spectral sum rules for the complex eigenvalues of the Dirac operator in terms of the fermion gap. Our results can in principle be tested in lattice QCD simulations.

Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 2009
Externally publishedYes
Event27th International Symposium on Lattice Field Theory, LAT 2009 - Beijing, China
Duration: 2009 Jul 262009 Jul 31

ASJC Scopus subject areas

  • General


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