Experimental study of exclusive 2 H (e, e ′ p)n reaction mechanisms at high Q 2
Abstract
The reaction
2
H
(e,
e
′
p)n
has been studied with full kinematic coverage for photon virtuality
1.75<
Q
2
<5.5
GeV
2
. 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
Δ
production followed by the
NΔ→NN
transition is the primary contribution at higher momenta.