5 papers
Non-perturbative renormalisation and improvement of non-singlet tensor currents in QCD
L. Chimirri, P. Fritzsch, J. Heitger +4
Hadronic matrix elements involving tensor currents play an important rôle in decays that allow to probe the consistency of the Standard Model via precision lattice QCD calculations…
A Quenched Exploration of Heavy Quark Moments and their Perturbative Expansion
Leonardo Chimirri
The parametric error on the QCD-coupling can be a dominant source of uncertainty in several important observables. One way to extract the coupling is to compare high order perturba…
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…
Investigation of the Perturbative Expansion of Moments of Heavy Quark Correlators for
Leonardo Chimirri, Rainer Sommer
The QCD-coupling is a necessary input in the computation of many observables, and the parametric error on input parameters can be a dominant source of uncertainty. The coupling can…
Non-perturbative renormalization of O(a) improved tensor currents
Leonardo Chimirri, Patrick Fritzsch, Jochen Heitger +4
We present our progress in the non-perturbative O(a) improvement and renormalization of tensor currents in three-flavor lattice QCD with Wilson-clover fermions and tree-level Syman…