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Precision
Electroweak
High-energy electron-positron collider experiments at CERN and SLAC have tested the electroweak theory at the Z mass to high precision. Nevertheless, with many free parameters, the theory is still incomplete, and physics signatures beyond the Standard Model are expected. Until the LHC @ CERN turns on and cleans up the field, among the most promising tests of the electroweak theory come from precision measurements performed at low energy. Our
group is actively involved in the measurement of parity violation
in Moller scattering - an experiment now being performed at the
Stanford Linear Accelerator Center. The experiment is called SLAC
Experiment E158, and Professor Hughes is one of
the spokespeople. Results from this experiment will test the electroweak
theory at the TeV level.
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