Reggeization of the Phillips-Barger model of high-energy hadron scattering

The Phillips-Barger model, successful in describing elastic hadron scattering, is generalized to include explicitly energy dependence `a la Regge

Approximate solution of the BFKL equation applicable at HERA

We suggest a formula interpolating between the known asymptotic regimes of the BFKL equation as the approximate solution of that equation. The parameters appearing in this interpolation are fitted to the data on deep inelastic scattering in a wide range of the kinematical variables. Care is taken of the large-$x$ domain as well, outside the HERA kinematical region. The boundaries and the interface between various dynamical regimes are also studied.Comment: 10 pages (LaTeX) + 6 figures (eps

Two-Parametric Quantum-Deformed Dual Amplitude

From a 2-parametric deformation of the harmonic oscillator algebra we construct a 4-point dual amplitude with nonlinear trajectories. The earlier versions of the q-deformed dual models are reproduced as limiting cases of the present model.Comment: 10 p. (LaTex), ITP-94-29E (misprints are corrected

Exclusive diffractive resonance production in proton-proton collisions at high energies

A model for exclusive diffractive resonance production in proton-proton collisions at high energies is presented. This model is able to predict double differential distributions with respect to the mass and the transverse momentum of the produced resonance in the mass region $\sqrt{M^2}\le$5 GeV. The model is based on convoluting the Pomeron distribution in the proton with the Pomeron-Pomeron-meson total cross section. The Pomeron-Pomeron-meson cross section is saturated by direct-channel contributions from the Pomeron as well as from two different $f$ trajectories, accompanied by the isolated f$_0(500)$ resonance dominating the $\sqrt{M^{2}} \leq$ GeV region. A slowly varying background is taken into account.Comment: 11 pages, 14 figures. arXiv admin note: text overlap with arXiv:1512.0497

Resonance-reggeon and parton-hadron duality in strong interactions

By using the concept of duality between direct channel resonances and Regge exchanges we relate the small- and large-$x$ behavior of the structure functions. We show that even a single resonance exhibits Bjorken scaling at large $Q^2$.Comment: 18 pages, 7 figures, 2 style files. To be published in Eur. Phys. J. A. Several typos are corrected, references are updated, LaTeX slyle is change