On the measurement of ${\chi }_2{(}^3{P}_2)$ quarkonium state in the processes $e^{+}+e^{-}\to \bar{p}+p$ and $\bar{p}+p\to e^{+}+e^{-}$

E. A. Kuraev, Yu. M. Bystritskiy, V. V. Bytev +1

The intermediate quarkonium state ${\chi }_2{(}^3{P}_2)$ in electron-positron annihilation to proton and antiproton as well as in antiproton-proton annihilation to electron and positron can…