7 papers
Hidden Symmetry and Georgi's Vector Limit
H. B. O'Connell, A. G. Williams
We study the generation of vector meson masses in the Hidden Local Symmetry (HLS) model of low energy QCD. After demoting the HLS to a hidden global symmetry (HGS), the rho is expl…
Lattice calculation of the gluon propagator and the strangeness magnetic moment of the nucleon
A. G. Williams
This contribution summarizes a presentation combining two topics in lattice QCD. Firstly, the gluon propagator in Landau gauge is calculated in quenched QCD on a large (32^3x64) la…
Recent results from QMC relevant to TJNAF
A. W. Thomas, D. H. Lu, K. Tsushima +2
We review recent calculations using the quark meson coupling model which should be of particular interest at Jefferson Lab. In particular, we discuss the change in the proton elect…
New results in vector meson dominance and rho meson physics
A. G. Williams
Recent results by Benayoun et al. comparing the predictions of a range of existing models based on the Vector Meson Dominance hypothesis are summarized and discussed. These are com…
Near-threshold Isospin Violation in the Pion Form Factor from Chiral Perturbation Theory
H. B. O'Connell, K. Maltman, A. W. Thomas +1
We examine the isospin violation in the timelike pion form factor near threshold at next-to-leading order in the chiral expansion using the techniques of Chiral Perturbation Theory…
Covariant Solutions of the Bethe-Salpeter Equation
A. G. Williams, K. Kusaka, K. M. Simpson
There is a need for covariant solutions of bound state equations in order to construct realistic QCD based models of mesons and baryons. Furthermore, we ideally need to know the st…