Compton scattering, meson exchange, and the polarizabilities of bound nucleons
- Saskatchewan Accelerator Laboratory, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5C6 (CANADA)
Elastic photon scattering cross sections on {sup 16}O have been measured in the energy range 27{endash}108 MeV. These data are inconsistent with a conventional interpretation in which the electric and magnetic polarizabilities of the bound nucleon are unchanged from the free values and the meson-exchange seagull amplitude is taken in the zero-energy limit. Agreement with the data can be achieved by invoking either strongly modified polarizabilities or a substantial energy dependence to the meson-exchange seagull amplitude. It is argued that these seemingly different explanations are experimentally indistinguishable and probably physically equivalent. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 389469
- Journal Information:
- Physical Review, C, Vol. 54, Issue 5; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
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