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- BenoÃ®t Blossier, Michele Della Morte, Georg M. von Hippel, Tereza Mendes, Rainer Sommer, Platanenallee
- 2009

We discuss the generalized eigenvalue problem for computing energies and matrix elements in lattice gauge theory, including effective theories such as HQET. It is analyzed how the extracted effectiveâ€¦ (More)

We construct the S-wave part of the electromagnetic vector a nnihilation current toO(Î±sv), where v is the non-relativistic quark velocity, for heavy quarks wh ose dynamics are described by the NRQCDâ€¦ (More)

- A. Hart, Georg M. von Hippel, R. R. Horgan, E. H. MÃ¼ller
- Computer Physics Communications
- 2009

The derivation of the Feynman rules for lattice perturbation theory from actions and operators is complicated, especially for highly improved actions such as HISQ. This task is, however, bothâ€¦ (More)

- Georg M. von Hippel
- Computer Physics Communications
- 2006

We present a new version of TaylUR, a Fortran 95 module to automatically compute the numerical values of a complex-valued function's derivatives with respect to several variables up to an arbitraryâ€¦ (More)

We present TaylUR, a Fortran 95 module to automatically compute the numerical values of a complex-valued function's derivatives with respect to several variables up to an arbitrary order in eachâ€¦ (More)

Deriving the Feynman rules for lattice perturbation theory from actions and operators is complicated, especially when improvement terms are present. This physically important task is, however,â€¦ (More)

We analyze the systematic errors made when using the generalized eigenvalue problem to extract energies and matrix elements in lattice gauge theory. Effective theories such as HQET are alsoâ€¦ (More)

- Georg M. von Hippel, Randy Lewis, Robert G. Petry
- Computer Physics Communications
- 2008

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. Harnessing theâ€¦ (More)

We present a preliminary analysis of the charm quark mass and the mass and decay constant f D s of the D s meson obtained from dynamical simulations of N f = 2 Wilson QCD on the large and fineâ€¦ (More)

We present a method to automatically derive the Feynman rule s for mesonic chiral perturbation theory with a lattice regulator. The Feynman rules can be out put both in a human-readable format and inâ€¦ (More)