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

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

2003-09-11

arxiv.org/abs/nucl-th/0309031v1

Physics

Nuclear Physics

Nuclear Theory

27 pages, 11 figures

Scientific paper

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.

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