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arxiv: hep-lat/0110194 · v1 · submitted 2001-10-24 · ✦ hep-lat

The anti-B --> D* lepton anti-neutrino form factor at zero recoil and the determination of V(cb)

classification ✦ hep-lat
keywords uncertaintyanti-banti-neutrinofactorformleptonrecoilsystematic
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We summarize our lattice QCD study of the form factor at zero recoil in the decay anti-B --> D* lepton anti-neutrino. After careful consideration of all sources of systematic uncertainty, we find, h_A1(1) = 0.913(+0.024-0.017)(+0.017-0.030), where the first uncertainty is from statistics and fitting while the second combined uncertainty is from all other systematic effects.

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