Compton Scattering by Nuclei
Abstract
The concept of Compton scattering by even-even nuclei from giant-resonance to nucleon-resonance energies and the status of experimental and theoretical researches in this field are outlined. Nuclear Compton scattering in the giant-resonance energy-region provides information on the dynamical properties of the in-medium mass of the nucleon. The electromagnetic polarizabilities of the nucleon in the nuclear medium can be extracted from nuclear Compton scattering data obtained in the quasi-deuteron energy-region. Recent results are presented for two-body effects due to the mesonic seagull amplitude and due to the excitation of nucleon internal degrees of freedom accompanied by meson exchanges. Due to these studies the in-medium electromagnetic polarizabilities are by now well understood, whereas the understanding of nuclear Compton scattering in the Delta-resonance range is only at the beginning. Phenomenological methods how to include retardation effects in the scattering amplitude are discussed and compared with model predictions.
Cite
@article{arxiv.nucl-th/9905026,
title = {Compton Scattering by Nuclei},
author = {M. -Th. Huett and A. I. L'vov and A. I. Milstein and M. Schumacher},
journal= {arXiv preprint arXiv:nucl-th/9905026},
year = {2014}
}
Comments
146 pages, 37 figures, submitted to Phys. Reports