Electron scattering with polarized beams at MIT-bates accelerator center

摘要

A brief introduction to electron scattering with polarized beams as a precise tool for studying electromagnetic structure of nucleons and nuclei will be presented. The status of a parity violating experiment SAMPLE [1] at Bates using a polarized beam to probe the strage quark content of proton will be reported. The polarized source at Bates as used for the SAMPLE experiment is described.