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arXiv · 0905.0857

Hyperon Axial Charges in Two-Flavor Chiral Perturbation Theory

Fu-Jiun Jiang·Brian C. Tiburzi
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Abstract

We use two-flavor heavy baryon chiral perturbation theory to investigate the isovector axial charges of the spin one-half hyperons. Expressions for these hyperon axial charges are derived at next-to-leading order in the chiral expansion. We utilize phenomenological and lattice QCD inputs to assess the convergence of the two-flavor theory, which appears to be best for cascades.

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Fu-Jiun Jiang, Brian C. Tiburzi. 2009-10-21. Hyperon Axial Charges in Two-Flavor Chiral Perturbation Theory. https://doi.org/10.1103/physrevd.80.077501

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