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We present nearly final results from our analysis of the form factors for$B\to D^\ast\ell\nu$ decay at nonzero recoil. Our analysis includes 15 MILCasqtad ensembles with $N_f=2+1$ flavors of sea quarks and lattice spacingsranging from $a\approx0.15$ fm down to $0.045$ fm. The valence light quarksemploy the asqtad action, whereas the $b$ and $c$ quarks are treated using theFermilab action. We discuss the impact that our results will have on $\|V_{cb}\ |$ and $R(D^\ast)$.

The \boldmath$B\to D^\ast\ell\nu$ semileptonic decay at nonzero recoil and its implications for $\ |V_{cb}\ |$ and $R(D^\ast)$