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.
|Journal||Proceedings of Science|
|Publication status||Published - 2009|
|Event||27th International Symposium on Lattice Field Theory, LAT 2009 - Beijing, China|
Duration: 2009 Jul 26 → 2009 Jul 31
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