The completion of the planned 12 GeV upgrade at Jefferson Lab will open a new avenue for precision studies of the high-x structure of the nucleon through parity-violation in deeply-inelastic scattering (PV-DIS). PV-DIS would be a clean technique for studying quark-level charge symmetry violation, probing higher-twist effects and for a measurement of the structure function ratio d/u at high x. In addition to these topics in hadronic physics, these measurements would also provide access to a linear combination of the poorly measured axial electron-quark weak couplings C2u and C2d, thus provide an important test of the electroweak Standard Model.
Spin Physics: 18th International Spin Physics Symposium
- Pub Date:
- August 2009
- Charge conjugation parity time reversal and other discrete symmetries;
- Inelastic electron scattering to specific states;
- Standard-model Higgs bosons