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A simple model for elastic diffractive hadron scattering, reproducing the dip-bump structure is used to analyze PP and $\bar PP$ scattering. The main emphasis is on the delicate and non-trivial dynamics in the dip-bump region, near t=-1…

High Energy Physics - Phenomenology · Physics 2015-05-28 L. Jenkovszky , A. Lengyel , D. Lontkovskyi

This article provides an in-depth look at hadron high energy scattering by using gravity dual descriptions of strongly coupled gauge theories. Just like deeply inelastic scattering (DIS) and deeply virtual Compton scattering (DVCS) serve as…

High Energy Physics - Phenomenology · Physics 2015-03-19 Ryoichi Nishio , Taizan Watari

A QCD-Pomeron composed by two non-perturbative gluons with a dynamically generated mass, is constructed in a gauge invariant way. The gluon propagator is infrared-finite. The model properly describes data on elastic scattering, exclusive…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. B. Gay Ducati

We address here the problem of describing both the total and the elastic proton-proton cross-section, through the four outstanding features of hadron scattering: (i) the optical point; (ii) the forward peak, (iii) the dip and (iv) the…

High Energy Physics - Phenomenology · Physics 2014-04-01 Giulia Pancheri , Daniel A. Fagundes , A. Grau , O. Shekhovtsova , Yogendra N. Srivastava

We compute the differential and the total cross sections for $pp$ scattering using the QCD pomeron model proposed by Landshoff and Nachtmann. This model is quite dependent on the experimental electromagnetic form factor, and it is not…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. Carvalho , A. A. Natale , C. M. Zanetti

The determination of magnitudes of basic parameters of the high energy elastic scattering amplitude are examined at small momentum transfers with taking account of the Coulomb-hadron interference effects.

High Energy Physics - Phenomenology · Physics 2009-11-07 S. B. Nurushev , O. V. Selyugin , M. N. Strikhanov

We describe the elements of the GLM model that successfully describes soft hadronic interactions at energies from ISR to LHC. This model is based on a single Pomeron with a large intercept $\Delta_{\pom}$ = 0.23 and slope $\alpha_{\pom}'$ =…

High Energy Physics - Phenomenology · Physics 2013-04-30 Errol Gotsman

Dominant contributions of enhanced Pomeron diagrams to elastic hadron-hadron scattering amplitude are re-summed to all orders. The formalism is applied to calculate total hadronic cross sections and elastic scattering slopes. An agreement…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Ostapchenko

We present our analysis on the high energy scattering processes in the framework of the holographic QCD, assuming that the Pomeron exchange gives a dominant contribution to the cross sections. Focusing on the two-body scattering, we employ…

High Energy Physics - Phenomenology · Physics 2019-10-23 Akira Watanabe

The Bloch-Nordsieck model for the parton distribution of hadrons in impact parameter space, constructed using soft gluon summation, is investigated in detail. Its dependence upon the infrared structure of the strong coupling constant…

High Energy Physics - Phenomenology · Physics 2016-09-06 A. Grau , G. Pancheri , Y. N. Srivastava

Taking into account the different forms of the Coulomb-hadron interference phase and the possible spin-flip contribution the new analysis of the experimental data of the proton-antiproton elastic scattering at $3.8 < p_L <6.0 \ $GeV/c and…

High Energy Physics - Phenomenology · Physics 2015-06-05 O. V. Selyugin

We discuss basic concepts and properties of diffractive phenomena in soft hadron collisions and in deep-inelastic scattering at low Bjorken-x. The paper is not a review of the rapidly developing field but presents an attempt to show in…

High Energy Physics - Phenomenology · Physics 2011-07-19 E. A. De Wolf

We predict pp elastic differential cross section at LHC at the c.m. energy sqrt(s) = 14 TeV and momentum transfer range |t| = 0 - 10 GeV^2, which is planned to be measured by the TOTEM group. The field theory model underlying our…

High Energy Physics - Phenomenology · Physics 2011-03-23 M. M. Islam , R. J. Luddy , A. V. Prokudin

Soft diffractive cross sections in $pp$ (or $\bar pp$), $\pi p$ and $\gamma p$ collisions are calculated using QCD-motivated pomeron. The $s$-channel unitarization of the amplitude is performed by the eikonal approach, and in the framework…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Anisovich , L. G. Dakhno , V. A. Nikonov

The unitarity of the $S$-matrix requires that the absorptive part of the elastic scattering amplitude receives contributions from both the inelastic and the elastic channels. We explore this unitarity condition in order to describe, in a…

High Energy Physics - Phenomenology · Physics 2015-06-17 P. C. Beggio , E. G. S. Luna

On the basis of the representation of the generalized structure of nucleons a new model of the hadron interaction at high energies is presented. The new t-dependence of the generalized parton distributions (GPDs) is obtained from the…

High Energy Physics - Phenomenology · Physics 2015-10-13 O. V. Selyugin

In the framework of Anisotropic Chromodynamics, a non-perturbative realization of QCD, we develop the Low-Nussinov picture of the Pomeron. In this approach all the usual problems of low pT perturbative calculations (infrared divergence) are…

High Energy Physics - Phenomenology · Physics 2009-10-28 Giuliano Preparata , Philip G. Ratcliffe

A truncated BFKL series is studied and applied to hadronic processes. The proton-(anti)proton cross sections are described with good agreement with data and in a way consistent with the unitarity bound. The elastic scattering amplitude is…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. B. Gay Ducati , M. V. T. Machado

Monte Carlo generators which were tuned for energies up to that of the Tevatron, are found wanting when extended to LHC energies. We construct a model that satisfies the theoretical requisites of high energy soft interactions, based on two…

High Energy Physics - Phenomenology · Physics 2011-09-22 Errol Gotsman

In the absence of a global description of the experimental data on elastic and soft diffractive scattering from the first principles of QCD, model-independent analyses may provide useful phenomenological insights for the development of the…

High Energy Physics - Phenomenology · Physics 2016-03-08 D. A. Fagundes , M. J. Menon , P. V. R. G. Silva