Incoherent pion photoproduction on the deuteron in the first resonance region

Abstract

Incoherent pion photoproduction on the deuteron is studied in the first resonance region. The unpolarized cross section, the beam asymmetry, and the vector and tensor target asymmetries are calculated in the framework of a diagrammatic approach. Pole diagrams and one-loop diagrams with $NN$ scattering in the final state are taken into account. An elementary operator for pion photoproduction on the nucleon is taken in various on-shell forms and calculated using the SAID and MAID multipole analyses. Model dependence of the obtained results is discussed in some detail. A comparison with predictions of other works is given. Although a reasonable description of many available experimental data on the unpolarized total and differential cross sections and photon asymmetry has been achieved, in some cases a significant disagreement between the theory and experiment has been found. Invoking known information on the reactions $\gamma d\to {\pi }^{0}d$ and $\gamma d\to np$ we predict the total photoabsorption cross section for deuterium. We find that our values strongly overestimate experimental data in the vicinity of the $\Delta$ peak.

arXiv comment22 pages, 23 figures

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Cited by in corpus (13)

• Isospin decomposition of $\gamma N\to N^{\ast }$ transitions within a dynamical coupled-channels model
• Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects
• Incoherent Pion Production in Neutrino - Deuteron Reactions
• Towards a Unified Model of Neutrino-Nucleus Reactions for Neutrino Oscillation Experiments
• Cross Section for $\gamma n\to {\pi }^{0}n$ measured at Mainz/A2
• On the Extraction of Cross Sections for pi0 and eta Photoproduction off Neutrons from Deuteron Data
• On the Photoproduction Reactions $\gamma d\to \pi NN$
• Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
• A three-body calculation of incoherent ${\pi }^0$ photoproduction on a deuteron
• Near-threshold ${\pi }^{-}$ photoproduction on the deuteron
• Extraction of $\gamma n\to \pi N$ observables from deuteron-target data
• Photoproduction of ${\pi }^0$-Mesons on the Nucleon and Deuteron
• Neutrino-Deuteron Reactions in the $\Delta$(1232) Region