The B → D*ℓν form factor at zero recoil and the determination of |Vcb|

Abstract

We summarize our lattice QCD study of the form factor at zero recoil in the decayB → D * ℓν. After careful consideration of all sources of systematic uncertainty, we find, hA 1 (1) = 0.913 +17−30 , where the first uncertainty is from statistics and fitting while the second combined uncertainty is from all other systematic effects.

Structure, Energetics and Properties of Fe3O4(001) from First Principles

“…The fineness of our lattices should also permit us to get clearer signals than those found in the recent literature [12]. • We will study the heavy quark mass dependence of the form factors describing semileptonic decays of a meson containing a heavy quark to a meson containing another heavy quark [13]. In the heavy-quark limit, these decays are described by a single heavy-mass independent universal form factor, the Isgur-Wise function.…”