257 citations · 7.5k across the 301 of their papers we have counts for
7 papers · 1 filter
SU(3) flavour symmetry breaking and charmed states
R. Horsley, J. Najjar, Y. Nakamura +7
By extending the SU(3) flavour symmetry breaking expansion from up, down and strange sea quark masses to partially quenched valence quark masses we propose a method to determine ch…
SU(3) flavour breaking and baryon structure
A. N. Cooke, R. Horsley, Y. Nakamura +6
We present results from the QCDSF/UKQCD collaboration for hyperon electromagnetic form factors and axial charges obtained from simulations using Nf=2+1 flavours of O(a)-improved Wi…
Electromagnetic splitting of quark and pseudoscalar meson masses from dynamical QCD + QED
R. Horsley, Y. Nakamura, D. Pleiter +5
Lattice QCD simulations are now reaching a precision where electromagnetic corrections from QED become important. In investigating the effects of SU(3) breaking due to quark mass d…
Perturbatively improving renormalization constants
M. Constantinou, M. Costa, M. Gockeler +6
Renormalization factors relate the observables obtained on the lattice to their measured counterparts in the continuum in a suitable renormalization scheme. They have to be compute…
The SU(3) Beta Function from Numerical Stochastic Perturbation Theory
R. Horsley, H. Perlt, P. E. L. Rakow +2
The SU(3) beta function is computed from Wilson loops to 20th order numerical stochastic perturbation theory. An attempt is made to include massless fermions, whose contribution is…
Perturbatively improving RI-MOM renormalization constants
M. Constantinou, M. Costa, M. Gockeler +6
The determination of renormalization factors is of crucial importance in lattice QCD. They relate the observables obtained on the lattice to their measured counterparts in the cont…