Baryons with Ginsparg-Wilson quarks in a staggered sea

Abstract

We determine the masses and magnetic moments of the octet baryons in chiral perturbation theory formulated for a mixed lattice action of Ginsparg-Wilson valence quarks and staggered sea quarks. Taste-symmetry breaking does not occur at next-to-leading order in the combined lattice-spacing and chiral expansion. Expressions derived for masses and magnetic moments are required for addressing lattice artifacts in mixed-action simulations of these observables.

21 pages, 2 figures, typos corrected, refs. added

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• Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino Program
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• Hadronic Interactions from Lattice QCD
• Hyperons in Two Flavor Chiral Perturbation Theory
• Universality of Mixed Action Extrapolation Formulae
• Strange Baryon Electromagnetic Form Factors and SU(3) Flavor Symmetry Breaking
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• $F_K/F_{\pi }$ from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles
• A Lattice Test of 1/N_c Baryon Mass Relations
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• SU(2) Low-Energy Constants from Mixed-Action Lattice QCD
• Mixed Action Effective Field Theory: an Addendum
• Evidence for non-analytic light quark mass dependence in the baryon spectrum
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• Chiral Corrections to Hyperon Axial Form Factors
• Connected Parts of Decuplet Electromagnetic Properties
• Hyperon Electromagnetic Properties in Two-Flavor Chiral Perturbation Theory
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