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Related papers: Unveiling saturation effects from nuclear structur…

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We present results from the first next-to-leading order (NLO) numerical analysis of forward hadron production in pA collisions in the small-x saturation formalism. Using parton distributions and fragmentation functions at NLO, as well as…

High Energy Physics - Phenomenology · Physics 2014-01-15 Anna M. Stasto , Bo-Wen Xiao , David Zaslavsky

We investigate the determination of the partonic structure of colorless exchanges in deep inelastic diffractive $ep$ scattering at the Electron Ion Collider, using the standard decomposition into Pomeron and Reggeon contributions. We…

High Energy Physics - Phenomenology · Physics 2024-10-03 Néstor Armesto , Paul R. Newman , Wojciech Słomiński , Anna M. Staśto

A future Electron Ion Collider (EIC) will be able to provide collisions of polarized electrons with protons and heavy ions over a wide range of center-of-mass energies (20 $\mathrm{GeV}$ to 140 $\mathrm{GeV}$) at an instanteous luminosity…

Nuclear Experiment · Physics 2017-11-15 Xiaoxuan Chu , Elke-Caroline Aschenauer , Jeong-Hun Lee , Liang Zheng

The idea of saturation of parton densities in small x physics is briefly introduced. Some aspects of saturation are described, mainly focusing on the status of our knowledge on the non-linear equations describing the high parton density…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. Armesto

We introduce a generalized definition of parton distribution functions (PDFs) for a more consistent all-order treatment of power corrections. We present a new set of modified DGLAP evolution equations for nuclear PDFs, and show that the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Zhong-Bo Kang , Jian-Wei Qiu

We estimate the impact of asymmetry measurements of Deeply Virtual Compton Scattering (DVCS) with transversely polarized proton beam taken at a future Electron Ion Collider in China (EicC) on the extraction of Compton Form Factors (CFFs).…

High Energy Physics - Phenomenology · Physics 2023-06-22 Xu Cao , Jinlong Zhang

A U.S.-based Electron-Ion Collider will provide the ultimate capability to determine both the structure and properties of nucleons and nuclei, as well as how matter and energy can be transported through a strongly interacting quantum…

High Energy Physics - Phenomenology · Physics 2019-12-24 Ivan Vitev

A future Electron-Ion Collider (EIC) will deliver luminosities of $10^{33} - 10^{34}$ cm$^{-2}$s$^{-1}$ for collisions of polarized electrons and protons and heavy ions over a wide range of center-of-mass energies (40 $\mathrm{GeV}$ to 145…

Nuclear Experiment · Physics 2016-07-12 Xiaoxuan Chu , Elke-Caroline Aschenauer , Jeong-Hun Lee

We investigate the transverse energy-energy correlators (TEEC) in the small-$x$ regime at the upcoming Electron-Ion Collider (EIC). Focusing on the back-to-back production of electron-hadron pairs in both $ep$ and $eA$ collisions, we…

High Energy Physics - Phenomenology · Physics 2024-06-06 Zhong-Bo Kang , Jani Penttala , Fanyi Zhao , Yiyu Zhou

Experimental measurements in collisions of small systems from p+p to p/d/3He+A at RHIC and the LHC reveal particle emission patterns that are strikingly similar to those observed in A+A collisions. One explanation of these patterns is the…

Nuclear Theory · Physics 2019-06-05 J. L. Nagle , W. A. Zajc

Using the dipole picture for electron-nucleus deep inelastic scattering at small Bjorken $x$, we study the effects of gluon saturation in the nuclear target on the cross-section for SIDIS (single inclusive hadron, or jet, production). We…

High Energy Physics - Phenomenology · Physics 2022-04-27 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos , S. Y. Wei

High energy lepton scattering has been the primary tool for mapping out the quark distributions of nucleons and nuclei. Data on the proton and deuteron have shown that there is a fundamental connection between the low and high energy…

Nuclear Experiment · Physics 2014-11-18 J. Arrington , R. Ent , C. E. Keppel , J. Mammei , I. Niculescu

We present numerical studies of the leading non-linear corrections to the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equations of parton distribution functions (PDFs) resulting from gluon recombination. The effect of these…

High Energy Physics - Phenomenology · Physics 2023-12-21 Pit Duwentäster , Vadim Guzey , Ilkka Helenius , Hannu Paukkunen

We study the impact of differential isolated-photon+jet cross sections measured in proton-proton collisions at a center-of-mass energy of sqrt{s} = 7 TeV on the parton distribution functions (PDF) of the proton. Next-to-leading order…

High Energy Physics - Phenomenology · Physics 2015-06-12 L. Carminati , G. Costa , D. d'Enterria , I. Koletsou , G. Marchiori , J. Rojo , M. Stockton , F. Tartarelli

We demonstrate the recently proposed nucleon energy-energy correlator (nucleon EEC) $f_{\rm EEC}(x,\theta)$ can unveil the gluon saturation in the small-$x$ regime in $eA$ collisions. The novelty of this probe is that it is fully inclusive…

High Energy Physics - Phenomenology · Physics 2023-05-15 Hao-Yu Liu , Xiaohui Liu , Ji-Chen Pan , Feng Yuan , Hua Xing Zhu

Global perturbative QCD analyses, based on large data sets from e-p and hadron collider experiments, provide tight constraints on the parton distribution function (PDF) in the proton. The extension of these analyses to nuclear parton…

High Energy Physics - Phenomenology · Physics 2011-04-07 Paloma Quiroga-Arias , José Guilherme Milhano , Urs Achim Wiedemann

A future Electron-Ion Colllider (EIC) is the ideal laboratory for studying the gluon distributions in both nucleons and nuclei for $\sqrt{s}$ = 63 - 158 (40 - 110) GeV/A for e+p (e+A) collisions. Whilst gluon distributions have been studied…

Nuclear Experiment · Physics 2009-07-15 M. A. C. Lamont

We discuss expectations of saturation physics for various observables in heavy ion collisions. We show how simple saturation-inspired assumptions about particle production in heavy ion collisions lead to Kharzeev-Levin-Nardi model.…

High Energy Physics - Phenomenology · Physics 2010-11-30 Yuri V. Kovchegov

We compute total and differential elastic cross sections of high-energy hadronic collisions in the loop-loop correlation model that provides a unified description of hadron-hadron, photon-hadron, and photon-photon reactions. The impact…

High Energy Physics - Phenomenology · Physics 2007-05-23 Arif I. Shoshi , Frank D. Steffen

The study of nuclear effects for J/{\psi} production in proton-nucleus collisions is crucial for a correct interpretation of the J/{\psi} suppression patterns experimentally observed in heavy-ion collisions. By means of three representative…

High Energy Physics - Phenomenology · Physics 2011-09-28 Chun-Gui Duan , Jian-Chao Xu , Li-Hua Song