Dinucleon Resonances and -Deuteron Elastic Scattering Amplitudes

Abstract

The effects of dinucleon resonances in π-deuteron elastic process are discussed. We first construct the background amplitudes using the Glauber model and investigate them in detail. A dinucleon formation term is superimposed on the background part. We examine all the world data of π-deuteron elastic scattering around dinucleon energy region and have found that, except around 600 MeV/c, they can be well explained by introducing the dinucleon resonances which are suggested in pp scattering.