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 di erent steps involved in this ratio method are discussed together with an account of the assessment of various systematic e ects. 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. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? International Workshop on the CKM Unitarity Triangle (CKM 2014), Vienna (Austria).
Lattice QCD study of B-meson decay constants from ETMC
FREZZOTTI, ROBERTO;ROSSI, GIANCARLO;
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 di erent steps involved in this ratio method are discussed together with an account of the assessment of various systematic e ects. A comparison of results from simulations with two and four flavour dynamical quarks is presented.| File | Dimensione | Formato | |
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