Fixed Target Møller Scattering at the NLC

I discuss the measurement of the parity violating left-right asymmetry in the scattering of high energy polarized electrons from the atomic electrons in a liquid hydrogen target. The asymmetry, due to the interference between the weak and electromagnetic amplitudes, measures the product of the vector and axialvector couplings of the electron to the Z boson, and is thus proportional to 1 4 sin W. The statistical power on the measurement of sin W for a given luminosity increases linearly with the incident beam energy. At NLC energies, one could achieve (sin W) = 0:00006 in 2 10s, which would be precise enough to probe the electroweak symmetry breaking sector at the quantum loop level. This would complement direct high energy collider searches, provide an important crosscheck of the electroweak theory and probe electron compositeness up to an interaction scale of 50 TeV.