101 citations · 300 across the 8 of their papers we have counts for
8 papers
Good and bad diquark properties and spatial correlations in lattice QCD
Anthony Francis, Philippe De Forcrand, Randy Lewis +1
We study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical…
A lattice investigation of exotic tetraquark channels
R. J. Hudspith, B. Colquhoun, A. Francis +2
We perform an lattice study of a number of channels where past claims exist in the literature for the existence of strong-interaction-stable light-heavy tetraquarks. We f…
Lattice QCD with a twisted mass term and a strange quark
Abdou M. Abdel-Rehim, Randy Lewis, R. M. Woloshyn +1
There are three quarks with masses at or below the characteristic scale of QCD dynamics: up, down and strange. However, twisted mass lattice QCD relies on quark doublets. Various o…
Chiral corrections to the Roper mass
B. Borasoy, P. C. Bruns, U. -G. Meißner +1
We analyze the quark mass dependence of the Roper mass to one-loop order in relativistic baryon chiral perturbation theory. The loop integrals are evaluated using infrared regulari…
Volume dependences from lattice chiral perturbation theory
B. Borasoy, R. Lewis
The physics of pions within a finite volume is explored using lattice regularized chiral perturbation theory. This regularization scheme permits a straightforward computational app…
Particle decay branching ratios for states of astrophysical importance in 19Ne
D. W. Visser, J. A. Caggiano, R. Lewis +3
We have measured proton and alpha-particle branching ratios of excited states in 19Ne formed using the 19F(3He,t) reaction at a beam energy of 25 MeV. These ratios have a large imp…