Browsing by Subject "Coupling constants"
Now showing items 1-6 of 6
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Conference Object
Calculation of the decay width of decuplet baryons
(Proceedings of Science (PoS), 2015)We calculate the coupling constant and decay width of the decuplet to octet baryon transitions in lattice QCD using the transfer matrix method. The transition amplitude is related to the coupling constant and via the Fermi's ...
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Conference Object
Determination of the Δ resonance width from lattice QCD
(Proceedings of Science (PoS), 2013)A method suitable for extracting resonance parameters of unstable baryons in lattice QCD is examined. The method is applied to the strong decay of the Δ to a pion-nucleon state, extracting the pND coupling constant and Δ ...
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Article
A new class of ferromagnetically-coupled mixed valence vanadium(IV/V) polyoxometalates
(2003)Reaction of [VVIOCl2(thf)2] with a bidentate nitrogen-donor ligand (L: phen = 1,10-phenanthroline, 5-mephen = 5-methyl-1,10-phenanthroline, bipy = 2,2′-bipyridine, 5,5′-me2bipy = 5,5′-dimethyl-2,2′-bipy) in methyl alcohol, ...
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Conference Object
Perturbative renormalization of staggered fermion operators with stout improvement: Application to the magnetic susceptibility of QCD
(Proceedings of Science (PoS), 2013)We calculate the fermion propagator and the quark-antiquark Green's functions for a complete set of ultralocal fermion bilinears, Γ [Γ: scalar (S), pseudoscalar (P), vector (V), axial (A) and tensor (T)], using perturbation ...
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Conference Object
Two-loop renormalization of fermion bilinears on the lattice
(2009)We compute the renormalization functions on the lattice, in the RI′ scheme, of local bilinear quark operators ψ̄ Γψ, where Γ = Î, γ5, γμ, γ5, γμ, γ5 σμν. This calculation is carried out to two loops for the first time. We ...
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Article
Δ(1232) axial charge and form factors from lattice QCD
(2011)We present the first calculation on the Δ axial vector and pseudoscalar form factors using lattice QCD. Two Goldberger-Treiman relations are derived and examined. A combined chiral fit is performed to the nucleon axial ...