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arXiv 2009-11-12 DOI 10.1016/j.physletb.2010.02.016 0 views

Axial Charges of Octet Baryons in Two-flavor Lattice QCD

Erkol, G. · Oka, M. · Takahashi, T. T.

Original · EN

We evaluate the strangeness-conserving N N, ΣΣ, ΞΞ, ΛΣ and the strangeness-changing ΛN, ΣN, ΛΞ, ΣΞ axial charges in lattice QCD with two flavors of dynamical quarks and extend our previous work on pseudoscalar-meson-octet-baryon coupling constants so as to include πΞΞ, KΛΞ and KΣΞ coupling constants. We find that the axial charges have rather weak quark-mass dependence and the breaking in SU(3)-flavor symmetry is small at each quark-mass point we consider.

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