# The 34th International Symposium on Lattice Field Theory (Lattice 2016)

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

## Masses and decay constants of D *(s) and B *(s) mesons in Lattice QCD with Nf=2+1+1 Twisted fermions

29 Jul 2016, 15:00
20m
Building 67 Room 1003 (Highfield Campus, University of Southampton)

### Building 67 Room 1003

#### Highfield Campus, University of Southampton

Talk Weak Decays and Matrix Elements

### Speaker

Aurora Melis (RomaTre University)

### Description

We present the results of a Lattice QCD determination of the heavy-light vector mesons masses and decay constants. The vector decay constants are relevant hadronic parameters that, for instance, can provide phenomenologically good descriptions of non-leptonic decay rates within the factorization approximation. Our calculation is based on the gauge configurations generated by the European Twisted Mass Collaboration with Nf = 2+1+1 dynamical quarks. These are particularly suitable for charm physics, as the strange and charm quark masses are close to their physical values. The extension to the beauty-sector requires an extrapolation for which the ETMC ratio method has been applied.

### Primary authors

Aurora Melis (RomaTre University) Dr Simula Silvano (INFN - Roma Tre) Prof. Vittorio Lubicz (RomaTre University)

 Slides