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arXiv · 0911.2447

Axial Charges of Octet Baryons in Two-flavor Lattice QCD

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

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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G. Erkol, M. Oka, T. T. Takahashi. 2010-02-02. Axial Charges of Octet Baryons in Two-flavor Lattice QCD. https://doi.org/10.1016/j.physletb.2010.02.016

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