Weak Decays of $J/\psi$ and ${\rm Y}(1S)$

Tianhong Wang, Yue Jiang, Han Yuan +2

In this paper we study the weak decays of $J/\psi$ and ${\rm Y}(1S)$. Using the Bethe-Salpeter method, we calculate the hadronic transition amplitude and give the form factors. We find that…