Theoretical Study of Polarization Observables For The gd →pNN Reaction in the D(1232)-Resonance Region

Darwish, Dr. Eed M.; Abou-Elsebaa, H. M.; Elmeshneb, A. E.

doi:10.21608/sjsci.2021.233174

Theoretical Study of Polarization Observables For The gd →pNN Reaction in the D(1232)-Resonance Region

Document Type : Regular Articles

Authors

¹ Taibah University - College of Science

² Physics Department, College of Science, Taibah University, Medina 41411, Saudi Arabia

³ Physics Department, College of Science and Arts, Taibah University, Al-Ula Branch, Saudi Arabia

10.21608/sjsci.2021.233174

Abstract

Incoherent pion photoproduction on the deuteron in the D (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 D (1232)-excitation is used. Our results for the elementary gN →pN 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 gd →pNN 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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