H Crannell

Learn More
This experiment will use tagged photons (1 to 2 GeV) in the CLAS to measure the differential A (γ ,K) and A (γ ,KY) cross sections on 3 He, 4 He, and 12 C, in quasi-free kinematics. Both K + and K o , as well as Y = Λ and Σ production will be measured. These measurements complement similar CLAS experiments on H and D. We expect photo-kaon production to be(More)
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for "fast" nucleons (p>250 MeV/c) peaks where two nucleons each have 20% or less, and the third nucleon has most of the transferred energy. These fast pp and pn pairs are back to back with little momentum along the three-momentum transfer,(More)
Polarization asymmetries are an essential ingredient in the interpretation of various meson production reactions in terms of the various resonances that contribute to the processes as real or virtual intermediate states. In the past, the pπ + π − final state has been treated often as arising from either of the quasi two-body states ∆π or Nρ, followed by the(More)
The photoproduction of ! mesons oo protons will beused to study baryon resonances and t-exchange processes in the center-of-mass energy regime of 1.73 to 2.24 GeV. In baryon spectroscopy, t h e !N c hannel is expected to be a signiicant branch for the decay of baryon resonances carrying the isospin I = 1 2. t-channel exchange contributions can only be(More)
  • 1