Dibaryon Resonances in e− + d → e− + n + p and the Deuteron Wave Function Structure at Short Distances

Abstract

We consider the dibaryon resonance (DR) manifestation in the differential d(e,e’p)n cross section measured at Bonn[1].In the consideration we analyse the sensitivity of various contributions in the d(e, e’p)n cross section to the spin structure of the deuteron wave function (DWF) at short distances. The γ* +d→n+p (γ* is the virtual photon) reaction dynamics will be described by the Feynman diagrams relativistically considering them when nucleons are described by the Dirac bispinors, and the deuteron — by the polarization 4-vector U μ . The relativistic impulse approximation (RIA) amplitude for γ* +d→n+p in this approach has no strict constraints either on k2 values, or on the final nucleon momenta (as is the case in the standard nonrelativistic approaches) (Fig.1).