176 citations · 1k across the 35 of their papers we have counts for
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Radiative improvement of the lattice NRQCD action using the background field method with applications to quarkonium spectroscopy
T. C. Hammant, A. G. Hart, G. M. von Hippel +2
We apply the background field (BF) method to Non-Relativistic QCD (NRQCD) on the lattice in order to determine the one-loop radiative corrections to the coefficients of the NRQCD a…
Radiative improvement of spin and Darwin terms in the NRQCD action
T. C. Hammant, A. G. Hart, G. M. von Hippel +2
We present updated results for the radiative improvement of the σ.B term and the spin-dependent four-fermion terms in the lattice NRQCD action, and first results for the radiative…
Light scalar spectrum in extra-dimensional gauge theories
Enrico Rinaldi, Luigi Del Debbio, Alistair Hart
The phase diagram of five-dimensional SU(2) gauge theories with one compactified dimension on anisotropic lattices has a rich structure. In this contribution we show how to control…
Light scalars in strongly-coupled extra-dimensional theories
Luigi Del Debbio, Alistair Hart, Enrico Rinaldi
The low-energy dynamics of five-dimensional Yang-Mills theories compactified on S^1 can be described by a four-dimensional gauge theory coupled to a scalar field in the adjoint rep…
The b quark mass from lattice nonrelativistic QCD
Alistair Hart, Georg von Hippel, R. R. Horgan +2
We present the first two-loop calculation of the heavy quark energy shift in lattice nonrelativistic QCD (NRQCD). This calculation allow us to extract a preliminary prediction of $…
Form factors for rare B decays: strategy, methodology, and numerical study
Zhaofeng Liu, Stefan Meinel, Alistair Hart +3
We investigate the combined use of moving NRQCD and stochastic sources in lattice calculations of form factors describing rare B and B_s decays. Moving NRQCD leads to a reduction o…