151 citations · 551 across the 26 of their papers we have counts for
6 papers · 1 filter
Multilevel Monte Carlo for quantum mechanics on a lattice
Karl Jansen, Eike Hermann Müller, Robert Scheichl
Monte Carlo simulations of quantum field theories on a lattice become increasingly expensive as the continuum limit is approached since the cost per independent sample grows with a…
The Upsilon spectrum and the determination of the lattice spacing from lattice QCD including charm quarks in the sea
R. J. Dowdall, B. Colquhoun, J. O. Daldrop +8
We give results for the Upsilon spectrum from lattice QCD using an improved version of the NRQCD action for b quarks which includes radiative corrections to kinetic terms at O(v^4)…
Improved automated lattice perturbation theory in background field gauge
T. C. Hammant, R. R. Horgan, C. J. Monahan +5
We present an algorithm to automatically derive Feynman rules for lattice perturbation theory in background field gauge. Vertices with an arbitrary number of both background and qu…
Renormalization of heavy-light currents in moving NRQCD
E. H. Müller, A. Hart, R. R. Horgan
Heavy-light decays such as , and can be used to constrain the parameters of the Standard Model and in indirect searches for…
Moving NRQCD for heavy-to-light form factors on the lattice
R. R. Horgan, L. Khomskii, S. Meinel +9
We formulate Non-Relativistic Quantum Chromodynamics (NRQCD) on a lattice which is boosted relative to the usual discretization frame. Moving NRQCD (mNRQCD) allows us to treat the…
Automated generation of lattice QCD Feynman rules
A. Hart, G. M. von Hippel, R. R. Horgan +1
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, ho…