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.
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).
Lattice QCD Study of B-meson Decay Constants from ETMC
LAMI, PAOLO;LUBICZ, Vittorio;PICCA, ELEONORA;RIGGIO, LORENZO;TARANTINO, CECILIA
2014-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
