Angular and polarization dependence of Compton scattering from in the Δ-resonance region
| Autor: | G. Galler, J. Peise, A. Kraus, Martin Schumacher, H. J. Arends, F. Wissmann, R. Beck, B Körfgen, F. Smend, J. Ahrens, O. Selke, M.-Th. Hütt, R. Wichmann |
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| Rok vydání: | 1998 |
| Předmět: |
Physics
Nuclear and High Energy Physics Photon 010308 nuclear & particles physics Scattering Compton scattering Scattering length Inelastic scattering Mott scattering 01 natural sciences Small-angle neutron scattering Nuclear physics X-ray Raman scattering 0103 physical sciences Nuclear Experiment 010306 general physics |
| Zdroj: | Physics Letters B. 432:45-50 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/s0370-2693(98)00635-2 |
| Popis: | Using linearly polarized tagged photons from coherent bremsstrahlung, differential cross sections and beam asymmetries for Compton scattering by 4 He have been measured at MAMI in the energy interval between 150 MeV and 500 MeV for scattering angles of θ γ lab =37°, 93° and 137°, thus largely increasing the available data base. Improved calculations in terms of the Δ -hole model completely fail to describe the data at large scattering angles. The same proved to be true for a schematic model, even after taking into account properties of nuclear photo-absorption in very detail. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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