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 different steps involved in this ratio method are discussed together with an account of the assessment of various systematic effects. A comparison of results from simulations with two and four flavour dynamical quarks is presented.
|Titolo:||Lattice QCD Study of B-meson Decay Constants from ETMC|
|Data di pubblicazione:||2014|
|Citazione:||Bussone, A., Carrasco, N., Dimopoulos, P., Frezzotti, R., Giménez, V., Herdoíza, G., et al. (2014). Lattice QCD Study of B-meson Decay Constants from ETMC. In Proceedings of the 8th International Workshop on the CKM Unitarity Triangle (CKM 2014).|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|