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Total and differential cross sections for high energy and small momentum transfer elastic hadron-hadron scattering are studied in QCD using a functional integral approach. The hadronic amplitudes are governed by vacuum expectation values of…

High Energy Physics - Phenomenology · Physics 2016-09-06 E. R. Berger , O. Nachtmann

The functional dependence of the high-energy observables of total cross section and slope parameter on the sizes of the colliding hadrons predicted by the model of the stochastic vacuum and the corresponding relations used in the geometric…

High Energy Physics - Phenomenology · Physics 2009-10-30 Erasmo Ferreira , Flávio Pereira

This report discusses some results on differential cross sections for high energy and small momentum transfer elastic hadron-hadron scattering in QCD, using a functional integral approach. In particulary a matrix cumulant expansion for the…

High Energy Physics - Phenomenology · Physics 2016-09-06 E. R. Berger

We present our analysis on high energy hadron-hadron scattering in the framework of the holographic QCD. Combining the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel and gravitational form factors of the involved hadrons which are…

High Energy Physics - Phenomenology · Physics 2020-04-07 Akira Watanabe , Mei Huang

The nonperturbative approach to soft high-energy hadron-hadron scattering, based on the analytic continuation of Euclidean Wilson-loop correlation functions, makes possible the investigation of the problem of the asymptotic energy…

High Energy Physics - Lattice · Physics 2011-10-25 M. Giordano , E. Meggiolaro

The amplitudes of hadron-hadron forward elastic scattering at high energy a re investigated on the basis of analiticity and crossing-symmetry which is valid in QCD. The universal uniformizing variable for them is proposed and the formulae…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Majewski , V. A. Meshcheryakov

The analysis on the hadron-hadron scattering at high energies in the framework of holographic QCD is presented. Combining the Pomeron exchange kernel and the hadron-Pomeron couplings which are obtained from the bottom-up AdS/QCD models, we…

High Energy Physics - Phenomenology · Physics 2020-01-08 Akira Watanabe

The elastic hadronic amplitude is calculated using the nonperturbative light-cone dipole representation for gluon bremsstrahlung. The data for large mass diffraction demand a two-scale structure of light hadrons: the gluon clouds of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich , I. K. Potashnikova , B. Povh , E. Predazzi

In the present investigation we study the leading and subleading high-energy behavior of hadron-hadron total cross sections using a best-fit analysis of hadronic scattering data. The parametrization used for the hadron-hadron total cross…

High Energy Physics - Phenomenology · Physics 2017-08-30 M. Giordano , E. Meggiolaro , P. V. R. G. Silva

The analysis of the procedure of the determining the parameters of the hadron elastic scattering amplitude at high energy is presented. The exponential and non-exponential form of the scattering amplitude are taken into account. Especially,…

High Energy Physics - Experiment · Physics 2013-10-22 O. V. Selyugin

We show how to obtain the leading energy dependence of hadronic total cross sections, in the framework of the nonperturbative approach to soft high-energy scattering based on Wilson-loop correlation functions, if certain nontrivial…

High Energy Physics - Phenomenology · Physics 2014-03-20 Matteo Giordano , Enrico Meggiolaro

The energy dependence of the total hadronic cross sections is caused by gluon bremsstrahlung which we treat nonperturbatively. It is located at small transverse distances about 0.3 fm from the valence quarks. The cross section of gluon…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. Z. Kopeliovich , I. K. Potashnikova , B. Povh , E. Predazzi

The nonperturbative approach to soft high-energy hadron-hadron scattering, based on the analytic continuation of Wilson-loop correlation functions from Euclidean to Minkowskian theory, allows to investigate the asymptotic energy dependence…

High Energy Physics - Phenomenology · Physics 2015-06-04 Matteo Giordano , Enrico Meggiolaro , Niccolò Moretti

We discuss how the main features of the recent LHC data on elastic scattering can be described by a QCD-inspired formalism with a dynamical infrared mass scale. For this purpose new developments on a dynamical gluon mass approach are…

High Energy Physics - Phenomenology · Physics 2015-06-03 D. A. Fagundes , E. G. S. Luna , M. J. Menon , A. A. Natale

By means of a nonperturbative approach to soft high-energy hadron-hadron scattering, based on the analytic continuation of Wilson-loop correlation functions from Euclidean to Minkowskian theory, we shall investigate the asymptotic energy…

High Energy Physics - Phenomenology · Physics 2015-06-11 E. Meggiolaro , M. Giordano , N. Moretti

Under the assumption of total absorption and dominance of the imaginary part of the scattering amplitude, we present a sum rule for any hadronic elastic differential cross-section ${d\sigma}\over{dt}$: the dimensionless quantity…

High Energy Physics - Phenomenology · Physics 2007-05-23 Giulia Pancheri , Yogendra Srivastava , Nicola Staffolani

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

An almost model-independent parametrization for the ratio of the total cross section to the elastic slope, as function of the center of mass energy, is introduced. The analytical result is based on the approximate relation of this quantity…

High Energy Physics - Phenomenology · Physics 2012-02-02 D. A. Fagundes , M. J. Menon

We investigate the hadron-hadron total cross sections at high energies in the framework of holographic QCD. In our model setup, the involved strong interaction is described by the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel, and…

High Energy Physics - Phenomenology · Physics 2018-12-05 Akira Watanabe , Mei Huang

We analyse the tension between the (indirect) measurements of the total cross section, and show the impact of various assumptions on the extraction of the parameters from the elastic scattering amplitude, with a special attention to the…

High Energy Physics - Phenomenology · Physics 2017-04-05 O. V. Selyugin , J. -R. Cudell
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