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Deuteron photodisintegration within the Quark-Gluon Strings Model and QCD motivated nonlinear Regge trajectories

  • V.Yu. Grishina
  • L.A. Kondratyuk
  • W. Cassing
  • A.B. Kaidalov
  • E. De Sanctis
  • P. Rossi

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.

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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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2001

Authors and Affiliations

  • V.Yu. Grishina
    • 1
  • L.A. Kondratyuk
    • 2
  • W. Cassing
    • 3
  • A.B. Kaidalov
    • 2
  • E. De Sanctis
    • 4
  • P. Rossi
    • 4
  1. 1.Institute for Nuclear Research, 60th October Anniversary Prospect 7A, 117312 Moscow, RussiaRU
  2. 2.Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya 25, 117259 Moscow, RussiaRU
  3. 3.Institute for Theoretical Physics, University of Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, GermanyDE
  4. 4.Frascati National Laboratories, INFN, CP 13, via E. Fermi, 40; I-00044, Frascati, ItalyIT

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