Quasi-two-body $B_{(s)}\to V\pi \pi$ Decays with Resonance $f_0(980)$ in PQCD Approach

Lei Yang, Zhi-Tian Zou, Ying Li +2

Motivated by the measurements of branching fractions of the quasi-two-body decays $B^0\to K^{\ast 0}(f_0(980)\to ){\pi }^{+}{\pi }^{-}$ and $B^0\to {\rho }^0(f_0(980)\to ){\pi }^{+}{\pi }^{-}$, we study the charmless $…