Angular distributions in pion-nucleon Drell-Yan process

I. V. Anikin, L. Szymanowski, O. V. Teryaev +1

We study the Drell-Yan process in the polarized pion-nucleon scattering. We calculate the $U(1{)}_{\text{em}}$ gauge invariant hadron tensors. To this end, we have to take into account…