Correlated PQCD Analysis of the Semileptonic Decays ${\overline{B}}^0\to D^{(\ast )+}{\ell }^{-}{\bar{\nu }}_{\ell }$ and the Nonleptonic Decays ${\overline{B}}^0\to D^{(\ast )+}{\pi }^{-}$

Mao-Jing Liu, Ying Li, Zhi-Tian Zou

We present a unified analysis of ${\overline{B}}^0\to D^{(\ast )+}{\ell }^{-}{\bar{\nu }}_{\ell }$ and ${\overline{B}}^0\to D^{(\ast )+}{\pi }^{-}$ decays using the perturbative QCD (PQCD) approach. The $B \to D^…