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Mesonic Contribution to the Compton Scattering Amplitude for Heavy Nuclei

M. -Th. Huett·A. I. Milstein
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Abstract

The contribution of mesonic exchange currents to nuclear Compton scattering is investigated within the framework of a Fermi gas model of nuclear matter in the non-relativistic limit. The additional interaction between the nucleons is accounted for by including two- and three-body diagrams. As a test of this model, the enhancement constant $κ$ is calculated. The full correlators for the central and tensor part of the nucleon-nucleon interaction due to pion exchange are obtained and the energy dependence of the amplitude is investigated. The contribution of the $Δ$-excitation to the mesonic part of the Compton amplitude is calculated explicitely using an effective Hamiltonian in the static limit.

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M. -Th. Huett, A. I. Milstein. 1995-09-29. Mesonic Contribution to the Compton Scattering Amplitude for Heavy Nuclei. https://doi.org/10.1016/s0375-9474(96)00270-9

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