Calculation of hyperon axial couplings from lattice QCD

2007/12/07 by Huey-Wen Lin, Konstantinos Orginos · 4 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.1103/physrevd.79.034507

published as Phys.Rev.D79:034507,2009 · 5 pages, 2 figures

arxiv created 2007/12/07 · openalex publication_date 2009/02/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

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 \ensuremathΣ and \ensuremathΞ axial couplings are computed for the first time in lattice QCD. In particular, we find that g_\ensuremathΣ\ensuremathΣ=0.450(21)_stat(27)_syst and g_\ensuremathΞ\ensuremathΞ=\ensuremath-0.277(15)_stat(19)_syst.

Citations

• SU(3)symmetry breaking in hyperon semileptonic decays
• The Gell-Mann–Okubo mass relation among baryons from fully-dynamical mixed-action lattice QCD
• The Chroma Software System for Lattice QCD
• Hamiltonian formulation of Wilson's lattice gauge theories
• SEMILEPTONIC HYPERON DECAYS

Cited by

• Meson-baryon scattering lengths from mixed-action lattice QCD
• Lattice test of1/Ncbaryon mass relations
• Selected results on hadron structure using state-of-the-art lattice QCD simulations
• Isovector axial-vector form factors of octet baryons in QCD