Deuteron photodisintegration within the quark-gluon strings model and QCD motivated nonlinear Regge trajectories

We investigate deuteron two-body photodisintegration within the framework of the quark-gluon string model with nonlinear baryon Regge trajectories. Special attention is paid to the use of QCD motivated Regge trajectories of the logarithmic and square-root form. We find that the recent experimental data from TJNAF in the few-GeV region can be reasonably described by the model. Angular distributions at different γ-energies are presented and the effect of a forward-backward asymmetry is discussed. Predictions for the energy dependence of dσ/dt at higher energies and different Θc.m. are presented, too. (orig.)