Speaker
Vincent Sulkosky
(MIT)
Description
We report on a measurement of parity-violating (PV) asymmetries in the
deep inelastic scattering (DIS) and nucleon resonance regions using
inclusive scattering of longitudinally polarized electrons from
unpolarized deuterons. The effective weak couplings $C_{2q}$ are
accessible through these PV-DIS asymmetries. This measurement of the
PV asymmetry yielded a determination of $2C_{2u} - C_{2d}$ with an improved
precision of a factor of five relative to previous results. These
results indicate evidence with 95% confidence that the $2C_{2u} - C_{2d}$ is
non-zero. This experiment also provides the first parity-violation
data covering the whole resonance region, which provide constraints
on nucleon resonance models. The program to measure PV-DIS
at JLab in the 12 GeV era will also be briefly discussed.
Author
Vincent Sulkosky
(MIT)
