12 citations · 21 across the 4 of their papers we have counts for
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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…
Using evolutionary algorithms to extract field theory mass spectra
Georg M. von Hippel, Randy Lewis, Robert G. Petry
The spectrum of masses from a lattice QCD simulation may be found by fitting exponential functions to correlators of operators possessing the quantum numbers of the particles of in…
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…