439 citations · 2.3k across the 48 of their papers we have counts for
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Non-contact interactions and the hadronic light-by-light contribution to the muon g-2
Richard Williams, Christian S. Fischer, Tobias Goecke
We summarise recent results for the quark loop part of the light-by-light scattering contribution to the muons anomalous magnetic moment. In particular we focus on the impact of a…
Triply heavy baryon mass estimated within pNRQCD
Felipe J. Llanes-Estrada, Olga I. Pavlova, Richard Williams
Potential-NRQCD offers an effective-theory based approach to heavy-quark physics. While meson Q-anti_Q computations are tractable in pure alpha_s-perturbation theory, more complex…
Delta and Omega electromagnetic form factors in a three-body covariant Bethe-Salpeter approach
Helios Sanchis-Alepuz, Richard Williams, Reinhard Alkofer
The electromagnetic form factors of the Delta and Omega baryons are calculated in the framework of Poincare-covariant bound-state equations. The quark-quark interaction is truncate…
Delta and Omega electromagnetic form factors in a covariant three-body approach
Helios Sanchis-Alepuz, Richard Williams, Reinhard Alkofer
We study baryons as three-body systems using the QCD degrees of freedom in the framework of covariant Bethe-Salpeter equations. The interaction among quarks is reduced to a vector-…
The role of vector meson dominance and running masses in the hadronic contributions to the muon
Tobias Goecke, Christian S. Fischer, Richard Williams
We summarize our recent results for the quark loop part of the light-by-light scattering contribution as well as the hadronic vacuum polarisation contributions to the anomalous mag…