
TY  - JOUR
A1  - Alexander, N 
A1  - Amos, K 
T1  - Role of an Electron Screened Mott&#8211;Schwinger Interaction in the Elastic Scattering of Neutrons
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1996
VL  - 49
IS  - 3
SP  - 633
EP  - 644
KW  - 
UR  - https://doi.org/10.1071/PH960633 
N2  - The Mott&#8211;Schwinger potential arising from the interaction of the magnetic moment of a neutron incident upon the (electric) field of a nucleus has a profound effect upon the cross sections for scattering. The purely nuclear interaction (hadronic plus Mott&#8211;Schwinger) leads to a divergence in the spin&#8211;flip scattering amplitude at 0&#176; scattering and thus to a divergent total scattering cross section. We demonstrate that the screening of this interaction caused by the atomic electron cloud essentially compensates that divergence so that the scattering cross-section values, to be used for example in reactor moderation calculations, are effectively those given by calculations made without consideration of any Mott&#8211;Schwinger potential. However, the forward scattered neutrons remain strongly polarised as a result of the (complete) Mott&#8211;Schwinger interaction. 
ER  -

