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We present preliminary results from our analysis of the form factors for the$\overline{B}\rightarrow D^\ast\ell\overline{\nu}$ decay at non-zero recoil.Our analysis includes 15 MILC asqtad ensembles with $N_f=2+1$ flavors of seaquarks and lattice spacings ranging from $a\approx 0.15$ fm down to $0.045$ fm.The valence light quarks employ the asqtad action, whereas the heavy quarks aretreated using the Fermilab action. We conclude with a discussion of futureplans and phenomenological implications. When combined with experimentalmeasurements of the decay rate, our calculation will enable a determination ofthe CKM matrix element $|V_{cb}|$.

$\overline{B}\rightarrow D^\ast\ell\overline{\nu}$ at non-zero recoil