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Proposing Institution

Fachgebiet Theoretische Physik ,TUM
Project Manager

Dr. Viljami Leino
James-Franck-Str. 1
85748 Garching
With this proposal, we aim to improve and strengthen the determination of strong coupling constant from the static energy of QCD. The calculations described in this proposal will build on the previous work by the TUMQCD collaboration. In two previous projects, we employ data generated using SuperMUC to determine the strong coupling constant from lattice QCD with 2+1 flavors in the sea using two independent observables, the QCD static energy and the time moments of quarkonium correlation functions. For the static energy, we propose two clear improvements. First, the earlier work was based on gauge-field configurations that omitted the effect of charm quarks in the sea. Now we import new gauge ensembles which include dynamical charm quarks in the sea. Second, we are developing a new approach to the continuum limit, which will reduce one of the largest systematic errors. We will remove the divergent term completely by subtracting off the mass of a static-strange meson in order to obtain a quantity with a well-defined continuum limit.

Impressum, Conny Wendler