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Deuteron photodisintegration within the Quark-Gluon Strings Model and QCD motivated nonlinear Regge trajectories |
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| Authors: | VYu Grishina LA Kondratyuk W Cassing AB Kaidalov E De Sanctis P Rossi |
| Institution: | (1) Institute for Nuclear Research, 60th October Anniversary Prospect 7A, 117312 Moscow, Russia, RU;(2) Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya 25, 117259 Moscow, Russia, RU;(3) Institute for Theoretical Physics, University of Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany, DE;(4) Frascati National Laboratories, INFN, CP 13, via E. Fermi, 40; I-00044, Frascati, Italy, IT |
| Abstract: | We investigate deuteron two-body photodisintegration within the framework of the Quark-Gluon Strings 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. Received: 12 March 2001 / Accepted: 19 March 2001 |
| Keywords: | PACS 12 40 Nn Regge theory duality absorptive/optical models – 12 40 Vv Vector-meson dominance – 13 40 -f Electromagnetic processes and properties – 25 20 -x Photonuclear reactions |
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