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Beam Spin Asymmetries In Deeply Virtual Compton Scattering (Dvcs) With Clas At 4.8 Gev, G. Gavalian, Gerard P. Gilfoyle, Et. Al.

Physics Faculty Publications

We report measurements of the beam spin asymmetry in deeply virtual Compton scattering (DVCS) at an electron beam energy of 4.8 GeV using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The DVCS beam spin asymmetry has been measured in a wide range of kinematics, 1.0 < Q² < 2.8 (GeV/c)², 0.12 < x_B < 0.48, and 0.1 < −t < 0.8 (GeV/c)², using the reaction ep → e' p X. The number of H(e, e' γ p) and H(e, e'π⁰p) events are separated in each (Q², x_B, t …