Abstract
The parity-violating left-right asymmetry in longitudinally-polarized-electron elastic scattering off unpolarized nucleons is studied in the contest of unified gauge theories of the weak and electromagnetic interactions. Predictions of a large variety of gauge models of present interest are given. It is shown that measurements at low electron beam energies, typically 150 to 800 MeV, and over a wide range of scattering, angles, are of particular importance for distinguishing between various SU(2) ⊗ U(1) models and between models based on larger gauge groups, such as and SU(3) ⊗ U(1) theories.
- Received 19 April 1978
DOI:https://doi.org/10.1103/PhysRevD.18.3230
©1978 American Physical Society