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…