Effect of Pion Absorption on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>π</mml:mi><mml:mi>d</mml:mi></mml:math>Elastic Scattering from Threshold to the Resonance Region

Abstract

The first relativistic calculation of elastic $\ensuremath{\pi}d$ scattering from threshold to ${{T}_{\ensuremath{\pi}}}^{\mathrm{lab}}=260$ MeV is presented, based upon a completely coupled set of integral equations. The effects of intermediate pion absorption as well as scattering through the nonpole part of the $\ensuremath{\pi}N{P}_{11}$ partial wave are consistently included and found to be important. A reasonable agreement with experiments is encouraging for further detailed studies.