TY  - JOUR
A1  - Toepffer, Christian
A1  - Greiner, Walter
T1  - Higher-order effects in electron-nucleus scattering
T2  - Physical review
N2  - Higher-order effects are calculated in the framework of the eigenchannel theory for elastic and inelastic electron-nucleus scattering in the energy region 100≤E≤250 MeV. A dispersion effect of about 12% is found for the elastic scattering on Ni58 at a momentum transfer q≈500 MeV/c. For inelastic scattering, the reorientation effect is discussed, in addition to the dispersion effect. The total higher-order effect changes the form factor for a hindered first-order transition by 50% at its minima. Furthermore, the dependence of the higher-order effects on the transition potentials of the virtual excitations, the model dependence, and the dependence on the energy E of the electron and the momentum transfer q are discussed. A closed formula for the S matrix is developed by calculating the eigenchannels in stationary perturbation theory.
Y1  - 2006
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2539
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-28664
UR  - http://link.aps.org/abstract/PR/v186/p1044
VL  - 186
IS  - 4
SP  - 1044
EP  - 1059
ER  -