66 citations · 176 across the 13 of their papers we have counts for
19 papers · 1 filter
Effect of Multiple Higgs Fields on the Phase Structure of the SU(2)-Higgs Model
Mark Wurtz, Randy Lewis, T. G. Steele
The SU(2)-Higgs model, with a single Higgs field in the fundamental representation and a quartic self-interaction, has a Higgs region and a confinement region which are analyticall…
Bottom baryons from a dynamical lattice QCD simulation
Randy Lewis, R. M. Woloshyn
Bottom baryon masses are calculated based on a 2+1 flavor dynamical lattice QCD simulation. The gauge field configurations were computed by the CP-PACS and JLQCD collaborations usi…
Exploring the meson spectrum with twisted mass lattice QCD
Robert G. Petry, Derek Harnett, Randy Lewis +1
Numerical simulations with access to all possible meson quantum numbers, J^{PC}, are presented using two-flavor (up and down) quenched twisted mass lattice QCD with three different…
Vacuum Expectation Values of Twisted Mass Fermion Operators
Abdou Abdel-Rehim, Randy Lewis, Walter Wilcox
Using noise methods on a quenched lattice at , we have investigated vacuum expectation values and relative linear correlations among the various Wilson and…
Evolutionary Fitting Methods for the Extraction of Mass Spectra in Lattice Field Theory
Georg M. von Hippel, Randy Lewis, Robert G. Petry
We present an application of evolutionary algorithms to the curve-fitting problems commonly encountered when trying to extract particle masses from correlators in Lattice QCD. Harn…
The Spectrum of tmLQCD with Quark and Link Smearing
Abdou M. Abdel-Rehim, Randy Lewis, Robert G. Petry +1
The effect of using smeared sink operators on the hadron spectrum is studied for quenched twisted mass lattice QCD with up, down, and strange quarks. Gaussian smearing is used for…