12 citations · 23 across the 4 of their papers we have counts for
4 papers
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…
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…
Toward Group Theory Operators for tmLQCD Hadrons
Derek Harnett, Randy Lewis, Robert G. Petry
Extraction of the mass spectrum from twisted mass lattice QCD is facilitated by respecting the octahedral group of rotations and accommodating the broken parity and flavor symmetri…