MOLLER: An ultra-precise measurement of electroweak mixing angle

The Measurement of a Lepton-Lepton Electroweak Reaction (MOLLER) experiment proposes to measure the parity-violating asymmetry in electron-electron (Møller) scattering. The measurement will be carried out at Jefferson Laboratory's accelerator and observe the resulting fractional difference in the probability of polarized electrons scattering off atomic electrons in a liquid hydrogen target. This asymmetry is proportional to the weak charge of the electron, which is a function of the electroweak mixing angle, one of the fundamental parameters of the electroweak theory. In this talk, I will give a review of the mixing angle and an overview of the physics goal of the MOLLER experiment.