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Deuteron Compton scattering below pion photoproduction threshold

M. I. Levchuk·A. I. L'vov
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Abstract

Deuteron Compton scattering below pion photoproduction threshold is considered in the framework of the nonrelativistic diagrammatic approach with the Bonn OBE potential. A complete gauge-invariant set of diagrams is taken into account which includes resonance diagrams without and with NN-rescattering and diagrams with one- and two-body seagulls. The seagull operators are analyzed in detail, and their relations with free- and bound-nucleon polarizabilities is discussed. It is found that both dipole and higher-order polarizabilities of the nucleon are needed for a quantitative description of recent experimental data. An estimate of the isospin-averaged dipole electromagnetic polarizabilities of the nucleon and the polarizabilities of the neutron is obtained from the data.

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M. I. Levchuk, A. I. L'vov. 2000-02-10. Deuteron Compton scattering below pion photoproduction threshold. https://doi.org/10.1016/s0375-9474(00)00145-7

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