International Journal of New Horizons in Physics
Journal license

Journal

International Journal of New Horizons in Physics


Volume
& Issue

Volume 5, Issue 2


Published
on

July 1, 2018


Pages

21-30


DOI

Article

Cross Sections for the $\gamma d \to \pi NN$ Reaction Channels in the Photon Energy Range Between 300 and 500 MeV Including Final-State Interaction Effects

Check for updates


Authors

Eed M. Darwish* Affiliation:
Physics Department, Faculty of Science, Taibah University, P.O. Box 30002, Al-Madinah Al-Munawarah 41411, Saudi Arabia; Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
and Mosleh M. Almarashi Affiliation:
Physics Department, Faculty of Science, Taibah University, P.O. Box 30002, Al-Madinah Al-Munawarah 41411, Saudi Arabia


Abstract

Cross sections for the incoherent pion photoproduction reaction on the deuteron including final-state interaction effects are studied in the photon energy region from $300$ to $500$ MeV. For the elementary pion photoproduction operator on the free nucleon, the unitary isobar MAID2007 model is used. The interactions in the final two-body subsystems are taken from separable representations of realistic potentials. Numerical results for the unpolarized differential and total cross sections as well as for the doubly polarized differential and total cross sections for parallel and antiparallel helicity states of photon and deuteron for the $\gamma d \to \pi^- pp$, $\gamma d \to \pi^+ nn$, and $\gamma d \to \pi^0 np$ channels are given. Effects of final-state interaction are investigated and their role in these cross sections are found to be significant, specially for $\pi^0$ production.


Keywords

Meson production, Photoproduction reactions, Polarization phenomena in reactions, Final-state interactions, Polarized beams, Polarized targets


Citation

Darwish, E. M. & Almarashi, M. M. (2018). Cross sections for the $\gamma d \to \pi NN$ reaction channels in the photon energy range between 300 and 500 mev including final-state interaction effects. International Journal of New Horizons in Physics, 5(2), 21–30. https://doi.org/10.18576/ijnhp/050202

Published by: Engineering Journals

Engineering Journals Logo