TY - JOUR
T1 - Chiral Lagrangian and spectral sum rules for two-color QCD at high density
AU - Kanazawa, Takuya
AU - Wettig, Tilo
AU - Yamamoto, Naoki
N1 - Funding Information:
TK and NY are supported by the Japan Society for the Promotion of Science for Young Scientists. TW is supportedby DFGand acknowledges additionalsupport by JSPSand bythe G-COE program of the University of Tokyo.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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M3 - Conference article
AN - SCOPUS:85055253079
SN - 1824-8039
VL - 91
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 27th International Symposium on Lattice Field Theory, LAT 2009
Y2 - 26 July 2009 through 31 July 2009
ER -