Effect ofπd channel coupling on the medium energy nucleon-nucleon interaction

The effect of the coupling to the ..pi..d channel on the intermediate energy NN scattering is studied using the recent NN..-->..NN and NN..--> pi..d partial wave analyses as well as the coupled NN..--> pi..NN theory. Contrary to some recent claims, it is found that this coupling is important in the /sup 1/D/sub 2/ and /sup 3/F/sub 3/ partial waves in which the intermediate N..delta.. configuration dominates.