Two-body non-leptonic heavy-to-heavy decays at NNLO in QCD factorization

Tobias Huber, Susanne Kränkl, Xin-Qiang Li

We evaluate in the framework of QCD factorization the two-loop vertex corrections to the decays ${\bar{B}}_{(s)}\to D_{(s)}^{(\ast )+}{L}^{-}$ and ${\Lambda }_b\to {\Lambda }_c^{+}{L}^{-}$, where $L$ is…