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arxiv: hep-lat/0509067 · v1 · submitted 2005-09-21 · ✦ hep-lat · hep-ph· nucl-th

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Baryon magnetic moments in the background field method

F.X. Lee , R. Kelly , L. Zhou , W. Wilcox
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classification ✦ hep-lat hep-phnucl-th
keywords magneticmomentsbackgroundbaryonfieldlatticemethodactions
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We present a calculation of the magnetic moments for the baryon octet and decuplet using the background-field method and standard Wilson gauge and fermion actions in the quenched approximation of lattice QCD. Progressively smaller static magnetic fields are introduced on a $24^4$ lattice at beta=6.0 and the pion mass is probed down to about 500 MeV. Magnetic moments are extracted from the linear response of the masses to the background field.

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  1. Charged kaon electric polarizability from four-point functions in lattice QCD

    hep-lat 2026-04 unverdicted novelty 6.0

    Lattice QCD on quenched 24^3 x 48 lattices yields charged kaon electric polarizability α_E = (0.988 ± 0.534) × 10^{-4} fm³ and charge radius squared 0.3303 ± 0.0028 fm² after physical pion-mass extrapolation.