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The centrality dependence of the mean charged-particle multiplicity as a function of pseudorapidity is measured in approximately 1 $\mu$b$^{-1}$ of proton--lead collisions at a nucleon--nucleon centre-of-mass energy of…

High Energy Physics - Experiment · Physics 2016-05-04 ATLAS Collaboration

A computer program is described to calculate momentum distributions in stripping and diffraction dissociation reactions. A Glauber model is used with the scattering wavefunctions calculated in the eikonal approximation. The program is…

Nuclear Theory · Physics 2009-11-11 C. A. Bertulani , A. Gade

The energy-dependence of charged particle mean multiplicity and pseudorapidity density at midrapidity measured in nucleus-nucleus and (anti)proton-proton collisions are studied in the entire available energy range. The study is performed…

High Energy Physics - Phenomenology · Physics 2010-12-15 Edward K. G. Sarkisyan , Alexander S. Sakharov

We explore predictions of the wounded quark model for particle production and properties of the initial state formed in ultrarelativistic heavy-ion collisions. The approach is applied uniformly to A+A collisions in a wide collision energy…

Nuclear Theory · Physics 2016-08-03 Piotr Bozek , Wojciech Broniowski , Maciej Rybczynski

We expect to observe parton saturation in a future electron - ion collider. In this letter we discuss this expectation in more detail considering two different models which are in good agreement with the existing experimental data on…

High Energy Physics - Phenomenology · Physics 2009-01-14 E. R. Cazaroto , F. Carvalho , V. P. Gonçalves , F. S. Navarra

A model is presented to describe electromagnetically induced two-nucleon emission processes in a shell-model picture. Distortions in the outgoing nucleon waves are accounted for by performing a partial-wave expansion in a real mean-field…

Nuclear Theory · Physics 2009-10-22 J. Ryckebusch , M. Vanderhaeghen , L. Machenil , M. Waroquier

The ultrarelativistic collisions of heavy ions provide rich spectrum of possibilities to discuss the response of the nucleus to photons. Newly published neutron and proton multiplicities measured in the ALICE experiment in ultraperipheral…

High Energy Physics - Phenomenology · Physics 2026-03-05 P. Jucha , K. Mazurek , A. Szczurek , K. Pysz

In this work, we couple Pb-Pb events simulated with the PYTHIA Angantyr event generator at $\sqrt{s_{\rm{NN}}}=2.76$ and $5.02$~TeV with the hadronic cascade simulator UrQMD to study the effect of the hadronic phase on observables such as…

We use the Kovchegov-Levin equation to resum contributions of large invariant mass diffractive final states to diffractive structure functions in the dipole picture of deep inelastic scattering. For protons we use a (modified)…

High Energy Physics - Phenomenology · Physics 2023-08-01 Tuomas Lappi , Anh Dung Le , Heikki Mäntysaari

Calculation of elastic p8Li- and p9Li-scattering differential cross sections, performed at two energies 0.07 and 0.7 GeV/nucleon within Glauber multiple diffraction scattering, are presented and discussed. Three-body wave functions:…

Nuclear Theory · Physics 2013-01-03 E. T. Ibraeva , M. A. Zhusupov , O. Imambekov

A semiclassical model is employed to study the effects of rescattering on (e,e'p) cross sections. We consider a two-step process with the propagation of an intermediate nucleon and use Glauber theory to account for the effects of N--N…

Nuclear Theory · Physics 2010-12-15 C. Barbieri , L. Lapikás , D. Rohe

``Glauber'' models are used to calculate geometric quantities in the initial state of heavy ion collisions, such as impact parameter, number of participating nucleons and initial eccentricity. The four RHIC experiments have different…

Nuclear Experiment · Physics 2008-05-29 B. Alver , M. Baker , C. Loizides , P. Steinberg

A phenomenological model for the description of the single and double diffractive excitation in $pp$ collisions at high energies is presented. Considering the Good -- Walker approach, we propose a model for the eigenstates of the scattering…

High Energy Physics - Phenomenology · Physics 2020-05-14 M. Broilo , V. P. Goncalves , P. V. R. G. Silva

The diffractive dissociation of virtual photons, gamma*p -> Xp, has been studied with the H1 and ZEUS detectors at HERA using various complementary techniques. Events have been selected by direct tagging of the outgoing proton or by…

High Energy Physics - Experiment · Physics 2009-03-18 Paul Newman , Marta Ruspa

In a recent article we presented a model for hadronic rescattering, and some results were shown for pp collisions at LHC energies. In order to extend the studies to pA and AA collisions, the Angantyr model for heavy-ion collisions is taken…

High Energy Physics - Phenomenology · Physics 2021-07-28 Christian Bierlich , Torbjörn Sjöstrand , Marius Utheim

Generative AI is a fast-growing area of research offering various avenues for exploration in high-energy nuclear physics. In this work, we explore the use of generative models for simulating electron-proton collisions relevant to…

High Energy Physics - Phenomenology · Physics 2024-08-14 Peter Devlin , Jian-Wei Qiu , Felix Ringer , Nobuo Sato

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

To test the model of the polarized gluon distribution $\Delta G(x, Q^2)$ in the proton, we propose a new process, diffractive $\Lambda_c^+$ productions in polarized $pp$ reactions, which will be observed in the forthcoming RHIC and also the…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. I. Kochelev , T. Morii , S. Oyama

Gluons at small x in high-energy nuclei overlap in the longitudinal direction, so the nucleus acts as a single source of gluons, like higher Fock components in a single nucleon, which contribute to inelastic collisions with a high…

High Energy Physics - Phenomenology · Physics 2013-12-16 B. Z. Kopeliovich , H. J. Pirner , I. K. Potashnikova , K. Reygers , Ivan Schmidt

The so called number of hadron-nucleus collisions n_coll(b) at impact parameter b, and its integral value N_coll, which are used to normalize the measured fractional cross section of a hard process, are calculated within the Glauber-Gribov…

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