Polarized-electron elastic scattering asymmetries in SU(2) × U(1) | Zendy

Frederick J. Gilman | Zendy; Thomas Tsao | Zendy

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Polarized-electron elastic scattering asymmetries in SU(2) × U(1)

Author(s) -

Frederick J. Gilman,

Thomas Tsao

Publication year - 1979

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.19.790

Subject(s) - physics , elastic scattering , electron , proton , neutron , deuterium , scattering , nuclear physics , atomic physics , electron scattering , sign (mathematics) , quantum mechanics , mathematical analysis , mathematics

The asymmetries in the elastic scattering of longitudinally polarized electrons by neutrons, protons, and deuterons are computed in detail within the SU(2) x U(1) gauge theory of the weak and electromagnetic interactions. The neutron-target asymmetries are several times larger, but are of the same sign as those for a proton target. Elastic polarized electron-deuteron scattering gives relatively large asymmetries of the opposite sign. At q/sup 2/ = 1 GeV/sup 2/ in the standard model with sin/sup 2/theta/sub W/ = 0.25, the asymmetries at high energy for proton, neutron, and deuteron targets are about - 4 x 10/sup -5/, - 13 x 10/sup -5/, and + 9 x 10/sup -5/, respectively.

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