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arXiv · 0712.1214

First Calculation of Hyperon Axial Couplings from Lattice QCD

Huey-Wen Lin·Konstantinos Orginos
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Abstract

In this work, we report the first lattice calculation of hyperon axial couplings, using the 2+1-flavor MILC configurations and domain-wall fermion valence quarks. Both the $Σ$ and $Ξ$ axial couplings are computed for the first time in lattice QCD. In particular we find that $g_{ΣΣ} = 0.450(21)_{\rm stat}(27)_{\rm syst}$ and $g_{ΞΞ} = -0.277(15)_{\rm stat}(19)_{\rm syst}$.

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BibTeXRIS

Huey-Wen Lin, Konstantinos Orginos. 2007-12-07. First Calculation of Hyperon Axial Couplings from Lattice QCD. https://doi.org/10.1103/physrevd.79.034507

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