# The 8th International Workshop on the CKM Unitarity Triangle

8-12 September 2014
Vienna University of Technology
Europe/Vienna timezone

## New results for fB from ETMC

8 Sep 2014, 15:08
18m
EI 7 lecture hall (Vienna University of Technology)

### Speaker

Gregorio HERDOIZA

### Description

We discuss a lattice QCD computation of the B-meson decay constants by the ETM collaboration where suitable ratios allow to reach the bottom quark sector by combining simulations around the charm-quark mass with an exactly known static limit. The extrapolations to the continuum limit and to the physical point as well as other sources of systematic uncertainties are analysed. A comparison of results from simulations with two and four flavour dynamical quarks will be presented.

 Slides