CLAS Physics Database

e6a CLAS experiment

Spokespersons
K. Sh. Egiyan, K. A. Griffioen and M. Strikman
Year
2006
Abstract
The reaction d(e,e'p)n has been studied with full kinematic coverage for photon virtuality 1.75 < Q^2 < 5.5 GeV^2. Comparisions of experimental data with theory indicate that for very low values of neutron recoil momentum (Pn < 100 MeV/c) the neutron is primarly a spectator and the reaction can be described by the plane-wave impulse approximation. For 100 < Pn < 750 MeV/c proton-neutron rescattering dominates the cross section, while delta production followed by the N + delta -> N + N transition is the primary contribution at higher momenta.
Publication
  1. K.Sh. Egiyan, G.A. Asryan, N. Gevorgyan, K.A. Griffioen, J.M. Laget, S.E. Kuhn and CLAS Collaboration Experimental Study of Exclusive 2H(e,e'p)n Reaction Mechanisms at High Q2 // PRL 98, 262502 (2007)
Quantities
dσ/(dQ2 dPn) dσ/(dQ2 dPnn)

Measurements

ID Quantity Beam Target Final state Q2min,
GeV2
Q2max,
GeV2
Wmin,
GeV
Wmax,
GeV
E20M1 dσ/(dQ2 dPn) e d p n 1.75 5.5 None None
E20M2 dσ/(dQ2 dPnn) e d p n 1.75 5.5 None None
E20M3 dσ/(dQ2 dPnn) e d p n 1.75 5.5 None None
E20M4 dσ/(dQ2 dPnn) e d p n 1.75 5.5 None None