Lattice QCD Study of $B$-meson Decay Constants from ETMC

Autor:	Bussone, A., Carrasco, N., Dimopoulos, P., Frezzotti, R., Giménez, V., Herdoíza, G., Lami, P., Lubicz, V., Michael, C., Picca, E., Riggio, L., Rossi, G. C., Sanfilippo, F., Shindler, A., Simula, S., Tarantino, C.
Rok vydání:	2014
Předmět:	High Energy Physics - Lattice High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	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. Comment: 8 pages, 4 figures. Proceedings of the 8th International Workshop on the CKM Unitarity Triangle (CKM 2014), Vienna, Austria, September 8-12, 2014
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1411.5566 Zobrazit plný text záznamu View this record from Arxiv