Measurement of the angular distribution in $\bar{p}p\to \psi (2S)\to e^{+}{e}^{-}$

Fermilab E835 Collaboration, M. Ambrogiani

We present the first measurement of the angular distribution for the exclusive process $\bar{p}p\to \psi (2S)\to e^{+}{e}^{-}$ based on a sample of 6844 events collected by the Fermilab E83…