The Physics of Electron-Electron Scattering
Prof. Dr. Krishna Kumar (University of Massachusetts, Amherst)

In this talk, I will discuss the physics that can be learned from one of the most elementary scattering processes: that of one electron scattering off another. Both theoretically and experimentally, relativistic electron-electron scattering, also known as Moller scattering, has played an important role in our understanding of electromagnetic and weak interactions. After a historical introduction and discussion of early results, I will describe the E158 experiment at the Stanford Linear Accelerator Center, which measured parity violation in Moller scattering for the first time. I will conclude by motivating the tremendous opportunity to significantly improve on the accuracy of the E158 measurement that becomes possible after the 12 GeV upgrade at Jefferson Laboratory.