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Data-driving determination of the new properties of elastic scattering at small angles on the basis on all existing experimental data for $d\sigma/dt$ of $pp$ and $p\bar{p}$ at $\sqrt{s} \geq 540$ GeV allows us to obtain the main…

High Energy Physics - Phenomenology · Physics 2024-11-18 O. V. Selyugin

We predict pp elastic differential cross section at LHC at the c.m. energy 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 phenomenological…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. M. Islam , R. J. Luddy , A. V. Prokudin

Theory suggests that in high-energy elastic hadron+hadron scattering, $t$-channel exchange of a family of colourless crossing-odd states -- the odderon -- may generate differences between $p\bar p$ and $pp$ cross-sections in the…

High Energy Physics - Phenomenology · Physics 2023-04-05 Zhu-Fang Cui , Daniele Binosi , Craig D. Roberts , Sebastian M. Schmidt , D. N. Triantafyllopoulos

Very precise data on elastic proton-proton scattering at $\sqrt{s}=7$, $8$ and $13$ TeV have been obtained by the TOTEM group at LHC in the near-forward region (momentum transfers down to $|t| = 6 \times 10^{-4}\ {\rm GeV}^2$ at…

High Energy Physics - Phenomenology · Physics 2019-03-01 Giulia Pancheri , Simone Pacetti , Yogendra Srivastava

The role of low-$x$ parton dynamics in dictating the high-energy behavior of forward scattering observables at LHC energies is investigated using a QCD-based model with even-under-crossing amplitude dominance at high-energies. We explore…

High Energy Physics - Phenomenology · Physics 2019-10-17 M. Broilo , D. A. Fagundes , E. G. S. Luna , M. J. Menon

Using a unified analytic representation for the elastic scattering amplitudes of pp scattering valid for all energy region, the behavior of observables in the LHC collisions in the range $\sqrt{s}$= 2.76 - 14 TeV is discussed. Similarly to…

High Energy Physics - Phenomenology · Physics 2014-10-22 Anderson Kendi Kohara , Erasmo Ferreira , Takeshi Kodama

High energy elastic $p p$ scattering at the Large Hadron Collider (LHC) at c.m. energy 14 TeV is predicted using the asymptotic behavior of $\sigma_{tot}(s)$ and $\rho(s)$ known from dispersion relation calculations and the measured elastic…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. M. Islam , R. J. Luddy , A. V. Prokudin

The TOTEM Collaboration has measured the differential cross section of elastic proton-proton scattering $\mathrm{d}\sigma/\mathrm{d}|t|$ at $\sqrt{s} = 2.76$, 7, 8, and 13 TeV. It is observed that all $\mathrm{d}\sigma/\mathrm{d}|t|$ data…

High Energy Physics - Phenomenology · Physics 2022-05-25 C. Baldenegro , C. Royon , A. Stasto

We demonstrate the existence of an anomalous structure in the data on the diffractive elastic scattering of hadrons at high energies and small momentum transfer. We analyze five sets of experimental data on $p(\overline{p})-p $ scattering…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. Barshay , P. Heiliger

A simple application of Regge theory, with 9 free parameters, provides a good fit to elastic scattering data at small t from 13.76 GeV to 13 TeV. It yields a value for rho, the ratio of the real part of the forward amplitude to its…

High Energy Physics - Phenomenology · Physics 2019-10-16 A Donnachie , P V Landshoff

The form and energy dependence of different terms of the cross-even and cross-odd parts of the elastic nucleon-nucleon scattering amplitude is determined in the framework of the High Energy Generalize Structure (HEGS) model. In the…

High Energy Physics - Phenomenology · Physics 2023-11-28 O. V. Selyugin

The main contribution to hard elastic scattering comes from components of wave functions of colliding hadrons that contain minimum number of partons. We discuss this mechanism in regge and parton approaches and estimate the probabilities…

High Energy Physics - Phenomenology · Physics 2010-12-27 O. V. Kancheli

First results of the differential cross section in dp elastic scattering at 1.25 GeV/u measured with the HADES over a large angular range are reported. The obtained data corresponds to large transverse momenta, where a high sensitivity to…

Recently the TOTEM experiment at the LHC has released measurements at $\sqrt{s} = 13$ TeV of the proton-proton total cross section, $\sigma_{tot}$, and the ratio of the real to imaginary parts of the forward elastic amplitude, $\rho$. Since…

High Energy Physics - Phenomenology · Physics 2019-10-30 M. Broilo , D. A. Fagundes , E. G. S. Luna , M. J. Menon

An analysis of the possible contribution of the hard pomeron in elastic hadron scattering at LHC energies is made. It is shown that such a contribution has affected the shape of the differential cross section in the Coulomb-hadron…

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

We study high energy $\small{\rm{pp}}$ and $\small{\rm{\bar {p}p}}$ elastic scattering in the TeV region based on an effective field theory model of the proton. We phenomenologically investigate the main processes underlying elastic…

High Energy Physics - Phenomenology · Physics 2013-10-31 M. M. Islam , R. J. Luddy

A dedicated sample of Large Hadron Collider proton-proton collision data at centre-of-mass energy $\sqrt{s}=8$ TeV is used to study inclusive single diffractive dissociation, $pp \rightarrow Xp$. The intact final-state proton is…

High Energy Physics - Experiment · Physics 2020-11-05 ATLAS Collaboration

We predict pp elastic differential cross sections at LHC at c.m. energy 14 TeV and momentum transfer range |t| = 0 - 10 GeV*2 in a nucleon-structure model. In this model, the nucleon has an outer cloud of quark-antiquark condensed ground…

High Energy Physics - Phenomenology · Physics 2007-08-10 M. M. Islam , J. Kaspar , R. J. Luddy

We show that extraction of the quantities} $\rho(s)=\mbox{Re}[T_{N}(s,0)]/\mbox{Im}[T_{N}(s,0)]$ {\it and} $\sigma_{\mbox{tot}}(s)$ {\it from the data on the $pp$ differential cross-section at $\sqrt{s} = 13$} TeV {\it obtained by the}…

High Energy Physics - Phenomenology · Physics 2020-03-11 V. V. Ezhela , V. A. Petrov , N. P. Tkachenko