Events at Physics |
In this talk, we focus on the last of the abovementioned topics. We begin by motivating and describing the results of the E158 experiment at the Stanford Linear Accelerator Center. We then discuss an ongoing project and possible future complementary measurements that can be carried out at Jefferson Laboratory. The first experiment will be carried out with a 1 GeV electron beam. With the completion of the 12 GeV upgrade, further precise measurements become feasible, in parity-violating deep inelastic scattering and in electron-electron scattering. In particular, the latter measurement could potentially lead to a measurement of the mixing angle with precision equal to or better than the two best collider measurements. In deep inelastic scattering, apart from testing the electroweak theory, the measurements would provide new precision probes the valence quark structure of the nucleon. Some aspects of the experimental challenges in carrying out this ambitious program will also be discussed.