An off-mass-shell continuation of the dual multiparticle amplitude is constructed in the analogue model for scalar particles. It is invariant under the SL (2;R) group, factorizable in the direct channel and the hadronic form-factor has a reasonable asymptotic behaviour; analytic properties, however, are not satisfactory. In the scaling limit the two-current amplitude shows an automatic cut-off in the transversal momentum, which is proportional to the momentum transfer (not fixed), so that an anomalous dimension appears in the model.
ASJC Scopus subject areas
- Nuclear and High Energy Physics