Testing ${\chi }_c$ properties at BELLE II

Henryk Czyż, Patrycja Kisza

The model of the ${\chi }_{c_i}-{\gamma }^{\ast }-{\gamma }^{\ast }$ and ${\chi }_{c_i}-J/{\psi }^{\ast }-{\gamma }^{\ast }$ form factors developed in [1] for ${\chi }_{c_1}$ and ${\chi }_{c_2}$ is extended to ${\chi }_{c_0}$ case. The studies performed within thi…