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From the very early days of Particle Physics, both experimental and theoretical studies on proton-proton collisions had occupied the center-stage of attention for very simple and obvious reasons. And this intense interest seems now to be at…

High Energy Physics - Phenomenology · Physics 2012-01-23 P. Guptaroy , Goutam Sau , S. Bhattacharyya

There are both theoretical and experimental uncertainties in using data from cosmic-ray air showers to estimate hadronic cross sections above accelerator energies. We outline these problems and compare the physics used to extract…

High Energy Physics - Phenomenology · Physics 2011-05-12 Ralph Engel , T. K. Gaisser , Paolo Lipari , Todor Stanev

We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% nuclear interaction length thick stationary carbon target, of proton and pion…

Proton-proton total and elastic cross sections are considered in the Dakhno-Nikonov eikonal model [L.G. Dakhno, V.A. Nikonov, Eur. Phys. J. A8, 209 (1999)] at ultra-high energies. The model takes into account the quark structure of hadrons…

High Energy Physics - Phenomenology · Physics 2013-06-24 V. V. Anisovich , K. V. Nikonov , V. A. Nikonov

An important approach to studying high-energy cosmic rays is the investigation of the properties of extensive air showers; however, the lateral distribution of particles in simulations of such showers strongly depends on the applied model…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Marek Szuba

First data on inclusive particle production measured in proton-proton collisions at the Large Hadron Collider (LHC) are compared to predictions of various hadron-interaction Monte Carlos (QGSJET, EPOS and SIBYLL) used commonly in…

High Energy Physics - Phenomenology · Physics 2015-05-28 David d'Enterria , Ralph Engel , Tanguy Pierog , Sergey Ostapchenko , Klaus Werner

I review the predictions of the total cross section for many models, and point out that some of them lead to the conclusion that the standard experimental analysis may lead to systematic errors much larger than expected.

High Energy Physics - Phenomenology · Physics 2009-11-19 J. R. Cudell

We argue that there are two mechanisms responsable for the growth of high energy cross-sections - \sigma_{tot} and \sigma_{el}, say - in pp collisions. One is by the increase of matter \emph{density}, resulting in the black disk saturation.…

High Energy Physics - Phenomenology · Physics 2015-05-28 R. Conceição , J. Dias de Deus , M. Pimenta

We present a study on the applicability of transverse mass scaling for identified particle spectra in proton-proton collisions at $\sqrt{s}=7$ TeV based on data taken by the ALICE experiment at the LHC. The measured yields are parametrized…

High Energy Physics - Phenomenology · Physics 2020-07-03 Lucas Altenkämper , Friederike Bock , Constantin Loizides , Nicolas Schmidt

In this paper, we report the production cross-section of forward photons in the pseudorapidity regions of $\eta\,>\,10.94$ and $8.99\,>\,\eta\,>\,8.81$, measured by the LHCf experiment with proton--proton collisions at $\sqrt{s}$ = 13 TeV.…

We discuss inclusive electromagnetic dissociation processes in proton--proton ($pp$) and proton--nucleus ($pA$) scattering at the LHC where one or both of the protons dissociate. These processes which involve the exchange of a virtual…

High Energy Physics - Phenomenology · Physics 2025-07-02 Robert Gȩbarowski , Agnieszka Łuszczak , Marta Łuszczak , Wolfgang Schäfer

We analyze $pp$ total cross section data from accelerator to cosmic-ray energies and show that the experimental information presently available indicate two different scenarios at the highest energies. One of them accommodates the…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. G. S. Luna , M. J. Menon

By combining the color dipole model of the nucleon with the assumption that cross sections behave asymptotically as $\ln^2(s)$, we are able to describe the data for photon, neutrino and hadron interactions with protons at all energies, $s$…

High Energy Physics - Phenomenology · Physics 2015-11-04 Carlos A. Arguelles , Francis Halzen , Logan Wille , Mike Kroll , Mary Hall Reno

The spectra of baryons at LHC can explain the features of the proton spectra in cosmic rays (CR). It seems important to study all baryon data that are available from collider experiments in wide range of energies. Transverse momentum…

High Energy Physics - Phenomenology · Physics 2018-11-12 Olga I. Piskounova

We derive in-medium PROTON-PROTON cross sections in a microscopic model based upon the Bonn nucleon-nucleon potential and the Dirac-Brueckner approach for nuclear matter. We demonstrate the difference between proton-proton and…

Nuclear Theory · Physics 2008-11-26 G. Q. Li , R. Machleidt

The completion of Run 1 of the CERN Large Hadron Collider has seen the discovery of the Higgs boson and an unprecedented number of precise measurements of the Standard Model, while Run 2 operation has just started to provide first data at…

High Energy Physics - Experiment · Physics 2016-11-23 Pierluigi Campana , Markus Klute , Pippa Wells

Large Hadron Collider (LHC) had produced a vast amount of high precision data for high energy heavy ion collision. We attempt here to study (i) transverse momenta spectra, (ii) $K/\pi$, $p/\pi$ ratio behaviours, (iii)rapidity distribution,…

High Energy Physics - Phenomenology · Physics 2015-02-20 P. Guptaroy , S. Guptaroy

A forward amplitude analysis on $pp$ and $\bar{p}p$ elastic scattering above 5 GeV is presented. The dataset includes the recent high-precision TOTEM measurements of the $pp$ total and elastic (integrated) cross-sections at 7 TeV and 8 TeV.…

High Energy Physics - Phenomenology · Physics 2013-07-31 M. J. Menon , P. V. R. G. Silva

The LHC energies are those at which the asymptotic regime in hadron-hadron diffractive collisions ($pp,\pi p,\pi\pi$) might be switched on. Based on results of the Dakhno-Nikonov eikonal model which is a generalization of the Good-Walker…

High Energy Physics - Phenomenology · Physics 2015-06-19 V. V. Anisovich , K. V. Nikonov , V. A. Nikonov , J. Nyiri

We present a `global' description of the wide variety of high energy elastic and diffractive data that are presently available, particularly from the LHC experiments. The model is based on only one pomeron pole, but includes multi-pomeron…

High Energy Physics - Phenomenology · Physics 2015-06-18 V. A. Khoze , A. D. Martin , M. G. Ryskin