91 citations · 1.2k across the 34 of their papers we have counts for
18 papers · 1 filter
Heavy quark distribution functions in heavy baryons
X. -H. Guo, A. W. Thomas, A. G. Williams
Using the Bethe-Salpeter (B-S) equations for heavy baryons Lambda_Q, Sigma_Q, Xi_Q and Omega_Q (Q=b or c), which were established in previous work, we calculate the heavy quark dis…
Dimensionally Regularized Study of Nonperturbative Quenched QED
Andreas W. Schreiber, Tom Sizer, Anthony G. Williams
We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED in an arbitrary covariant gauge using the Curtis-Pennington verte…
Vector meson dominance and the rho meson
M. Benayoun, H. B. O'Connell, A. G. Williams
We discuss the properties of vector mesons, in particular the rho^0, in the context of the Hidden Local Symmetry (HLS) model. This provides a unified framework to study several asp…
Bethe-Salpeter Equation for Heavy Baryons ω_{Q}^{(*)} in the Diquark Picture
X. -H. Guo, A. W. Thomas, A. G. Williams
In the heavy quark limit, the heavy baryons ω_{Q}^{(*)} (ωcould be Σ, Ξor Ωand Q=b or c) are regarded as composed of a heavy quark and an axial vector, light diquark with good spin…
Dimensionally regularized study of nonperturbative quenched QED
Andreas W. Schreiber, Tom Sizer, Anthony G. Williams
We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED. We work in arbitrary covariant gauge and perform nonperturbative…
On extracting the rho-omega mixing amplitude from the pion form-factor
A. G. Williams, H. B. O'Connell, A. W. Thomas
In this paper we improve and extend a recent analysis which showed that the rho-omega mixing amplitude cannot be unambiguously extracted from the pion electromagnetic form-factor i…