Measurement of Deeply Virtual Compton Scattering at HERA
arXiv:hep-ex/0107005 · doi:10.1016/S0370-2693(01)00939-X
Abstract
A measurement is presented of elastic Deeply Virtual Compton Scattering e^+ + p -> e^+ + photon + p at HERA using data taken with the H1 detector. The cross section is measured as a function of the photon virtuality, Q^2, and the invariant mass, W, of the gamma p system, in the kinematic range 2 < Q^2 < 20 GeV^2, 30 < W < 120 GeV and |t| < 1 GeV^2, where t is the squared momentum transfer to the proton. The measurement is compared to QCD based calculations.
14 pages, 5 figures, 2 tables