Seminar on Strong Interaction:"Two topics in Lattice QCD: Nucleon Sigma terms and charm-induced cut-off effects"

by Dr Stephan Durr (Wuppertal University)

Monday 4 Jul 2016, 14:15 → 15:45 Europe/Berlin

Seminar Room 3344 (Physics Department (TUM))

After a brief reminder of the origin of some of the systematic uncertainties in phenomenologically oriented lattice computations, I shall discuss two topics. First, I will address the status of computations of the nucleon sigma terms (both non-strange and strange) by the BMW collaboration. Second, I will address the (large) size of cut-off effects in charmed quantities with clover-improved Wilson fermions, e.g. in the hyperfine splittings (cc and cs). Time permitting, I shall add a few thoughts how these problems might be mitigated with Brillouin fermions.