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Nonet meson properties in the Nambu-Jona-Lasinio model with dimensional versus cutoff regularization

Journal Article · · Physical Review. D, Particles Fields
; ; ;  [1]
  1. Information Media Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8521 (Japan)

The Nambu-Jona-Lasinio model with a Kobayashi-Maskawa-'t Hooft term is one low energy effective theory of QCD which includes the U{sub A}(1) anomaly. We investigate nonet meson properties in this model with three flavors of quarks. We employ two types of regularizations, the dimensional and sharp cutoff ones. The model parameters are fixed phenomenologically for each regularization. Evaluating the kaon decay constant, the {eta} meson mass and the topological susceptibility, we show the regularization dependence of the results and discuss the applicability of the Nambu-Jona-Lasinio model.

OSTI ID:
21504866
Journal Information:
Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English