activity
19922022
most citedA New Way to Set the Energy Scale in Lattice Gauge Theories and its Application to the Static Force and in SU(2) Yang--Mills Theory

935 citations · 9k across the 128 of their papers we have counts for

collaborators

140 papers

hep-lat2022

The influence of gauge field smearing on discretisation effects

Andreas Risch, Stefan Schaefer, Rainer Sommer

When designing lattice actions, gauge field smearing is frequently used to define the lattice Dirac operator. Since the smearing procedure removes effects of ultraviolet fluctuatio…

hep-lat2022

Log-enhanced discretization errors in integrated correlation functions

Leonardo Chimirri, Nikolai Husung, Rainer Sommer

Integrated time-slice correlation functions with weights appear, e.g., in the moments method to determine from heavy quark correlators, in the muon g-2 determin…

hep-lat2022

Estimating excited states contamination of form factors using heavy meson chiral perturbation theory

Oliver Bär, Alexander Broll, Rainer Sommer

Using Heavy Meson Chiral Perturbation Theory (HMChPT), the excited states contamination of the vector form factors is computed to NLO in the chiral expansion and…

hep-lat2022★ 1 cited

-state contamination in -meson observables

Oliver Bar, Alexander Broll, Rainer Sommer

Multi-particle states with additional pions are expected to result in a non-negligible excited-state contamination in lattice simulations. We show that heavy meson chiral perturbat…

hep-lat2022★ 21 cited

Determination of by the non-perturbative decoupling method

Mattia Dalla Brida, Roman Höllwieser, Francesco Knechtli +5

We present the details and first results of a new strategy for the determination of . By simultaneously decoupling 3 fictitious heavy quarks we establish a relation betwe…

hep-lat2022★ 20 cited

On fits to correlated and auto-correlated data

Mattia Bruno, Rainer Sommer

Observables in particle physics and specifically in lattice QCD calculations are often extracted from fits. Standard tests require a reliable determination of the covariance…