12-13 February 2014
Europe/Berlin timezone

Spin asymmetry in high-energy electron-nucleus scattering: bremsstrahlung versus elastic scattering

12 Feb 2014, 17:30


Institut für Kernphysik; Johannes Gutenberg-Universität Mainz; Johann-Joachim-Becher-Weg 45; D 55128 Mainz


Dr Doris Jakubassa-Amundsen (Mathematics Institute, University of Munich)


The polarization correlations between the incident electron and an emitted bremssstrahlung photon as classified by Tseng and Pratt are extended into the high-energy regime where nuclear structure effects play a dominant role. While electron scattering from spin-zero nuclei is mostly governed by the finite-nuclear-size effects, nuclear bremsstrahlung and magnetic effects come into play when the target carries spin. Theoretical predictions are made for light and medium-heavy nuclei in the energy regime 5-160 MeV by using the PWBA and the higher-order weak-potential approximation (WPA). For circularly polarized photons near the short-wavelength limit the polarization correlations can be related to the electron-electron polarization correlations from elastic scattering. Their modifications by the nuclear structure effects may, however, be considerably different for the two processes. This is shown by using the PWBA and DWBA theories for the description of elastic scattering.

Primary author

Dr Doris Jakubassa-Amundsen (Mathematics Institute, University of Munich)

Presentation Materials

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