Reinvestigating the $B$ $\to$ $PP$ decays by including the contributions from ${\varphi }_{B2}$

Yueling Yang, Lan Lang, Xule Zhao +2

Considering the $B$ mesonic distribution amplitude ${\varphi }_{B2}$, we reinvestigated the $B$ $\to$ $PP$ (where $P$ $=$ $\pi$ and $K$) decays with the perturbative QCD (pQCD) approach bas…