Polarization observables in the $γd\toπNN$ reaction in the $Δ$(1232)-resonance region

E. M. Darwish, Kh. Gad

Published 2003-09-11Version 1

Incoherent pion photoproduction on the deuteron in the $\Delta$(1232)-resonance region is investigated with special emphasis on polarization observables. For the elementary pion photoproduction operator an effective Lagrangian model which includes the standard pseudovector Born terms and a resonance contribution from the $\Delta$(1232)-excitation is used. Our results for the elementary $\gamma N\to\pi N$ reaction are in good agreement with recent experimental data and results of other theoretical calculations. A general analysis of all possible polarization observables for the $\gamma d \to\pi NN$ reaction with polarized photon beam and/or oriented deuteron target is presented. The unpolarized differential cross section, photon asymmetry, vector and tensor target asymmetries are predicted for forthcoming experiments.