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arXiv · 1202.4849

Photoproduction of the $πN$ pair on nuclei and isobar configurations

I. V. Glavanakov·A. N. Tabachenko
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Abstract

A model of $πN$ pair photoproduction on nuclei at high momentum transfer is presented. The $A(γ,πN)B$ reaction amplitude is obtained by means of an extended impulse approximation, according to which the nuclear wavefunction includes delta-isobar components in addition to nucleon components. A one-particle transition operator is defined in terms of the two-body $γN\toπN$ and $γΔ\toπN$ photoproduction amplitudes. Direct and exchange mechanisms of the nuclear photoproduction reaction are studied, and numerical estimates are made and presented of $^{12}{\rm C}(γ,π^- p){^{11}{\rm C}}$ and $^{12}{\rm C}(γ,π^+ p){^{11}{\rm Be}}$ differential cross sections at photon incident energies in the $Δ(1232)$ resonance region.

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I. V. Glavanakov, A. N. Tabachenko. 2013-02-13. Photoproduction of the $πN$ pair on nuclei and isobar configurations. https://doi.org/10.1016/j.nuclphysa.2012.07.003

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