Coherent ${\pi }^0$ and $\eta$ Photoproduction on the Deuteron

Abstract

Coherent pion photoproduction, $d(\gamma ,{\pi }^0)d$, is calculated in a coupled channels approach in momentum space using an elementary production operator that includes Born terms, vector meson exchange and $M1/E2$ $\Delta$-resonance excitation. The final state interaction is treated in the KMT multiple scattering approach that describes $\pi d$ elastic scattering well. Differential cross sections are found to agree well with existing ($\gamma ,{\pi }^0$) data. The polarization observables $\Sigma ,i{T}_{11}$ and the tensor analyzing powers are predicted for forthcoming experiments. A number of transparent relationships between polarization observables and the elementary production operator is derived. Finally, calculations are performed for coherent eta photoproduction, $d(\gamma ,\eta )d$, in the threshold region which agree well with a very recent Mainz experiment.

28 pages LATEX and 12 postscript figures in a self-extracting uufile archive

References in corpus (3)

• The $\eta$NN Coupling in Eta Photoproduction
• Pion interaction with the trinucleon up to the eta production threshold
• Two-body Mechanisms in Pion Photoproduction on the Trinucleon

Cited by in corpus (15)

• Study of Non-Strange Baryon Resonances with Meson Photoproduction
• Neutral pion photoproduction on deuterium in baryon chiral perturbation theory to order q^4
• Incoherent pion photoproduction on the deuteron in the first resonance region
• The $\eta NN$-system at low energy within a three-body approach
• Color coherent phenomena on nuclei and the QCD evolution equation
• Influence of final state interaction on incoherent η-photoproduction on the deuteron near threshold
• Evidence for a backward peak in the gamma+d->pi^0+d cross section near the eta threshold
• Coherent π^\circ photoproduction from ^4He
• On the reaction g d -> pi0 d near the threshold of eta production
• Two-body effects in coherent eta-meson photoproduction on the deuteron in the region of the S_11(1535) resonance
• Considerations on rescattering effects for threshold photo- and electro-production of ${\pi }^0$ on deuteron
• Rescattering effects in coherent eta-photoproduction on the deuteron
• Possible ${\eta }^{\prime }d$ bound state and its $s$-channel formation in the $\gamma d\to \eta d$ reaction
• Nuclear coherent ${\pi }^0$ photoproduction with charge-exchange and spin-flip rescattering
• A quark model framework for the study of nuclear medium effects