Virtual contributions from $D^{\ast }(2007{)}^0$ and $D^{\ast }(2010{)}^{\pm }$ in the $B\to D\pi h$ decays

Wen-Fei Wang, Jian Chai

We study the quasi-two-body decays $B\to D^{\ast }h\to D\pi h$ with $h=(\pi ,K)$ in the perturbative QCD approach and focus on the virtual contributions from the off-shell $D^{\ast }(2007{)}^0$…