242 research outputs found

    Dual Properties of the Structure Functions

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    By using the concept of duality between direct channel resonances and Regge exchanges we relate the small- and large-xx behavior of the structure functions. We show that even a single resonance exhibits Bjorken scaling at large Q2Q^2.Comment: 4 pages talk given at XXXI International Symposium on Multiparticle Dynamics, Sep. 1-7, 2001, Datong China URL http://ismd31.ccnu.edu.cn

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

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    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

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    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-xx 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

    Resonance production in Pomeron-Pomeron collisions at the LHC

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    A model for Pomeron-Pomeron total cross section in the resonance region M2≤\sqrt{M^{2}} \le 5 GeV is presented. This model is based on Regge poles from the Pomeron and two different ff trajectories, and includes the isolated f0(500)_{0}(500) resonance in the region M2≲1\sqrt{M^{2}}\lesssim 1 GeV. A slowly varying background is included. The presented Pomeron-Pomeron cross section is not directly measurable, but is an essential ingredient for calculating exclusive resonance production at the LHC.Comment: Proceedings XXIV Int. Workshop on Deep-Inelastic Scattering and Related Subjects (DIS16), DESY, 11-15 April 2016, 5 pages, 3 figure

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

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    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 M2≤\sqrt{M^2}\le5 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 ff trajectories, accompanied by the isolated f0(500)_0(500) resonance dominating the M2≤\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
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