The $S$-wave resonance contributions to the three-body decays $B_{(s)}^0\to {\eta }_c{f}_0(X)\to {\eta }_c{\pi }^{+}{\pi }^{-}$ in perturbative QCD approach

Ya Li, Ai-Jun Ma, Wen-Fei Wang +1

In this paper, we study the three-body decays $B^0/B_s^0\to {\eta }_c{f}_0(X)\to {\eta }_c{\pi }^{+}{\pi }^{-}$ by employing the perturbative QCD (PQCD) factorization approach. We evaluate the $S$-wave res…