Speaker
Carsten Urbach
(HISKP, Uni Bonn)
Description
We present first results for the pseudoscalar decay constants $f_K$, $f_D$ and $f_{D_s}$ in lattice QCD with dynamical up, down, strange and charm quark flavours. The investigation is based on gauge configurations generated by the ETM collaboration using $N_f=2+1+1$ Wilson twisted mass fermions at maximal twist at one value of the lattice spacing around 0.08 fm and several values of the light quark masses. In the valence sector the so called Osterwalder-Seiler formulation is used. The extra- and interpolation in the various quark masses will be discussed.
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Primary author
Carsten Urbach
(HISKP, Uni Bonn)
Co-authors
Mr
Andreas Nube
(NIC DESY)
Prof.
Constantia Alexandrou
(University of Cyprus)
Dr
Federico Farchioni
(University of Muenster)
Dr
Gregorio Herdoiza
(NIC DESY)
Dr
Karl Jansen
(NIC DESY)
Dr
Marc Wagner
(HU Berlin)
Mr
Marcus Petschlies
(HU Berlin)
