6533b821fe1ef96bd127af43

RESEARCH PRODUCT

Weak Polarized Electron Scattering

Charles HorowitzPaul SouderJens ErlerJens ErlerSonny MantrySonny Mantry

subject

PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryScatteringPhysics beyond the Standard Modelmedia_common.quotation_subjectStrong interactionFOS: Physical sciencesElectronAsymmetrySymmetry (physics)Nuclear Theory (nucl-th)Cross section (physics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Nuclear Experiment (nucl-ex)Electron scatteringNuclear Experimentmedia_common

description

Scattering polarized electrons provides an important probe of the weak interactions. Precisely measuring the parity-violating left-right cross section asymmetry is the goal of a number of experiments recently completed or in progress. The experiments are challenging, since A_{LR} is small, typically between 10^(-4) and 10^(-8). By carefully choosing appropriate targets and kinematics, various pieces of the weak Lagrangian can be isolated, providing a search for physics beyond the Standard Model. For other choices, unique features of the strong interaction are studied, including the radius of the neutron density in heavy nuclei, charge symmetry violation, and higher twist terms. This article reviews the theory behind the experiments, as well as the general techniques used in the experimental program.

https://dx.doi.org/10.48550/arxiv.1401.6199