Abstract

The exclusive charmonium production process in $\stackrel{}{}$ annihilation with an associated ${\pi 0}^{}$ meson $\stackrel{}{}/\mathrm{\psi \pi 0}$ is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the $J/\mathrm{\psi \to e}{}^{}{e-}^{-}$ decay channel with the AntiProton ANnihilation at DArmstadt ($\stackrel{¯P}{P}\mathrm{ANDA}$) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the $\stackrel{¯p}{p}{}^{}{}^{}{\pi -}^{-}{\pi }^0$ and $\stackrel{¯p}{p}/\psi {\pi }^0{\pi }^0$ reactions are performed with PandaRoot, the simulation and analysis software framework of the $\stackrel{¯P}{P}\mathrm{ANDA}$ experiment. It is shown that the measurement can be done at $\stackrel{¯P}{P}\mathrm{ANDA}$ with significant constraining power under the assumption of an integrated luminosity attainable in four to five months of data taking at the maximum design luminosity.