Leptonic B- and D-Meson Decay Constants with 2+1 Flavors of Asqtad Fermions
Author | : |
Publisher | : |
Total Pages | : 7 |
Release | : 2015 |
ISBN-10 | : OCLC:930077858 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Leptonic B- and D-Meson Decay Constants with 2+1 Flavors of Asqtad Fermions written by and published by . This book was released on 2015 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the status of our updated D- and B-meson decay-constant analysis, based on the MILC Nf =2+1 asqtad gauge ensembles. Heavy quarks are incorporated using the Wilson clover action with the Fermilab interpretation. This analysis includes ensembles at five lattice spacings from [alpha] ≈ 0.045 to 0.15 fm, and light sea-quark masses down to 1/20th of the strange-quark mass. Projected error budgets for ratios of decay constants, in particular between bottom- and charm-meson decay constants, are presented.