Perturbative corrections to $B\to D$ form factors in QCD

Yu-Ming Wang, Yan-Bing Wei, Yue-Long Shen +1

We compute perturbative QCD corrections to $B\to D$ form factors at leading power in $\Lambda /m_b$, at large hadronic recoil, from the light-cone sum rules (LCSR) with $B$-meson distrib…