The consideration of quantum fields defined on a spacetime lattice provides computational
techniques which are invaluable for studying gauge theories nonperturbatively from first …

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 …

D s mesons are studied in three quantum channels (JP= 0+, 1+ and 2+), where experiments
have identified the very narrow D s 0*(2317), D s 1 (2460) and narrow D s 1 (2536), D s …

We employ a variational basis with a number of q¯ q and π π lattice interpolating fields with
quantum numbers of the ρ resonance to extract the discrete energy spectrum in a finite …

In a recent paper [ETMC, P. Boucaud et al., Phys. Lett. B 650 (2007) 304, hep-lat/0701012]
we presented precise lattice QCD results of our European Twisted Mass Collaboration …

We present a variant of the HMC algorithm with mass preconditioning (Hasenbusch
acceleration) and multiple time scale integration. We have tested this variant for standard …

We introduce new discretizations of the action for static quarks. They achieve an exponential
improvement (compared to the Eichten-Hill regularization) on the signal to noise ratio in …

We compute the Π u and Σ u-hybrid static potentials in SU (3) lattice gauge theory using four
different lattice spacings ranging from a= 0.040 fm to a= 0.093 fm. We provide lattice data …

We investigate a variant of hypercubic gauge link smearing where the SU (3) projection is
replaced with a normalization to the corresponding unitary group. This smearing is …

We study the contributions Σ 0 and Σ 1, proportional to a 0 and a 1, to the fermion self-energy
in Wilson's formulation of lattice QCD with UV-filtering in the fermion action. We derive …