High angular momentum NN bound-state production in the reaction pp→π-X+

Abstract

Using a nuclear physics approach, the authors investigate the orbital angular momentum dependence in the baryonium JP=1- production in the reaction pp pi -X+. Although the calculated cross section for l=0 states is larger than the experimental upper limit, they show that the existence of l=2 'nuclear type' baryonium states cannot be discarded.