24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Charmed meson physics from three-flavour lattice QCD

26 Jul 2016, 20:00
1h
Highfield Campus, University of Southampton

Highfield Campus, University of Southampton

Highfield Campus, Southampton SO17 1BJ, UK
Poster Weak Decays and Matrix Elements Poster

Speaker

Mr Kevin Eckert (WWU Muenster)

Description

We report on analysis aspects within a joint ongoing effort of the ALPHA and RQCD Collaborations to compute charmed meson masses and the leptonic decay constants $f_{{\rm D}}$ and $f_{{\rm D}_{\rm s}}$ in $(2+1)$-flavour lattice QCD, employing non-perturbatively O($a$) improved Wilson quarks and the tree-level Symanzik-improved gauge action. Our studies make use of large-volume CLS configurations at two lattice spacings ($a\approx 0.086,0.064$ fm) with open boundary conditions. In particular, we present our implementation of distance preconditioning (as proposed by de Divitiis et al.) for the calculation of heavy quark propagators and discuss the resulting accuracy improvements of charmed meson correlators and its impact on the extraction of charmed meson masses and decay constants.

Primary author

Mr Kevin Eckert (WWU Muenster)

Co-authors

Dr Jochen Heitger (WWU Muenster) Dr Sara Collins (University of Regensburg) Mr Stefan Hofmann (German) Wolfgang Soeldner (Regensburg University)

Presentation Materials