Experimental study of exclusive 2H(e,e'p)n reaction mechanisms at high Q2

Phys Rev Lett. 2007 Jun 29;98(26):262502. doi: 10.1103/PhysRevLett.98.262502. Epub 2007 Jun 27.


The reaction 2H(e,e'p)n has been studied with full kinematic coverage for photon virtuality 1.75<Q2<5.5 GeV2. Comparisons of experimental data with theory indicate that for very low values of neutron recoil momentum (p(n)<100 MeV/c) the neutron is primarily a spectator and the reaction can be described by the plane-wave impulse approximation. For 100<p(n)<750 MeV/c, proton-neutron rescattering dominates the cross section, while Delta production followed by the NDelta-->NN transition is the primary contribution at higher momenta.