Speaker
Julien Frison
(Universidad Autonoma Madrid)
Description
The first phase of a heavy quark program based on twisted mass valence quarks has been presented at last year's lattice conference. The CLS $N_f=2+1$ ensembles were used for their fine lattice spacing, while twisting the masses is expected to reduce discretisation errors even further and allow for a fully relativistic calculation. In this poster, we present our first preliminary results on three point functions, corresponding to $D\to K$ and $D\to\pi$ semileptonic decays. We discuss our discretisation errors and the perspectives for the determination of $|V_{cs}|$ and $|V_{cd}|$, as well as for future uses of this framework for other semileptonic decays.
Authors
Julien Frison
(Universidad Autonoma Madrid)
Dr
Andrea Bussone
(IFT - Universidad Autonoma de Madrid)
Gregorio Herdoiza
Carlos Pena Ruano
(Universidad Autonoma de Madrid (ES))
Mr
Javier Ugarrio
(IFT - Universidad Autonoma de Madrid)
Mr
Jose Angel Romero
(IFT - Universidad de Madrid)
