Publications by authors named "CD Keith"

First measurements of double-polarization observables in ω photoproduction off the proton are presented using transverse target polarization and data from the CEBAF Large Acceptance Spectrometer (CLAS) FROST experiment at Jefferson Lab. The beam-target asymmetry F has been measured using circularly polarized, tagged photons in the energy range 1200-2700 MeV, and the beam-target asymmetries H and P have been measured using linearly polarized, tagged photons in the energy range 1200-2000 MeV. These measurements significantly increase the database on polarization observables.

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We measured the g_{1} spin structure function of the deuteron at low Q^{2}, where QCD can be approximated with chiral perturbation theory (χPT). The data cover the resonance region, up to an invariant mass of W≈1.9  GeV.

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Article Synopsis
  • A study was conducted at Jefferson Lab using a 6 GeV electron beam to measure how photons are produced by protons in a deeply inelastic scattering context.
  • The researchers analyzed target-spin asymmetries from specific electron-proton-photon events across various kinematic conditions, providing data in 166 four-dimensional bins.
  • The findings help improve our understanding of the proton's axial charge distribution and offer critical constraints for current generalized parton distribution models.
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