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We investigate the contribution of inelastic and elastic processes to single inclusive hadron production in proton-proton and proton (deuteron)-nucleus collisions at RHIC and the LHC. Using the hybrid formulation which includes both elastic…

High Energy Physics - Phenomenology · Physics 2012-01-18 Jamal Jalilian-Marian , Amir H. Rezaeian

In this work we use an eikonalized minijet model where the effects of the first nonlinear corrections to the DGLAP equations are taken into account. The contributions coming from gluon recombination effects are included in the DGLAP+GLRMQ…

High Energy Physics - Phenomenology · Physics 2013-12-05 A. V. Giannini , F. O. Durães

We calculate the cross section for forward $\mathrm{J}/\psi$ production in proton-proton and minimum bias proton-lead collisions using the Color Glass Condensate (CGC) and Non-Relativistic QCD (NRQCD) formalism consistently with Deep…

High Energy Physics - Phenomenology · Physics 2024-09-04 Patricia Gimeno-Estivill , Tuomas Lappi , Heikki Mäntysaari

We evaluate the octupole in the large-$N_c$ limit in the McLerran-Venugopalan model, and derive a general expression of the 2n-point correlator, which can be applied in analytical studies of the multi-particle production in the scatterings…

High Energy Physics - Theory · Physics 2017-07-05 Yu Shi , Enke Wang , Cheng Zhang

We discuss the Drell-Yan production of dileptons at high energies in the forward rapidity region of proton-proton collisions in a hybrid high-energy approach. This approach uses unintegrated gluon distributions in one proton and collinear…

High Energy Physics - Phenomenology · Physics 2016-10-18 Wolfgang Schäfer , Antoni Szczurek

We use the Color Glass Condensate (CGC) framework to study the production of forward heavy quark-antiquark pairs in unpolarized proton-nucleus or proton-proton collisions in the small-x regime. In the limit of nearly back-to-back jets, the…

High Energy Physics - Phenomenology · Physics 2018-02-26 Cyrille Marquet , Claude Roiesnel , Pieter Taels

We prove that the inclusive single-gluon production cross section for a hadron colliding with a high-density target factorizes into the gluon distribution function of the projectile, defined as usual within the DGLAP collinear…

High Energy Physics - Phenomenology · Physics 2011-01-25 Adrian Dumitru , Jamal Jalilian-Marian

We study the azimuthal asymmetries for quark pair production in proton-nucleus collisions using a hybrid approach in which the nucleus is treated in the Color Glass Condensate (CGC) framework while the Lipatov approximation is applied on…

High Energy Physics - Phenomenology · Physics 2013-03-14 Emin Akcakaya , Andreas Schäfer , Jian Zhou

We compute the differential yield for quark anti-quark dijet production in high-energy electron-proton and electron-nucleus collisions at small $x$ as a function of the relative momentum $\boldsymbol{P}_\perp$ and momentum imbalance…

High Energy Physics - Phenomenology · Physics 2022-09-20 Renaud Boussarie , Heikki Mäntysaari , Farid Salazar , Björn Schenke

We calculate isolated photon production at forward rapidities in proton-nucleus collisions in the Color Glass Condensate framework. Our calculation uses dipole cross sections solved from the running coupling Balitsky-Kovchegov equation with…

High Energy Physics - Phenomenology · Physics 2019-02-20 B. Ducloué , T. Lappi , H. Mäntysaari

We compute the differential cross-section for inclusive prompt photon production in deeply inelastic scattering (DIS) of electrons on nuclei at small $x$ in the framework of the Color Glass Condensate (CGC) effective theory. The leading…

High Energy Physics - Phenomenology · Physics 2018-05-08 Kaushik Roy , Raju Venugopalan

We calculate the inclusive heavy quark production cross section for proton-nucleus collisions at high energies. We perform calculation in a quasi-classical approximation (McLerran-Venugopalan model) neglecting all low-x evolution effects.…

High Energy Physics - Phenomenology · Physics 2009-11-10 Kirill Tuchin

We consider transverse momentum dependent gluon distributions inside both unpolarized and transversely polarized protons and show how they can be probed by looking at azimuthal modulations in $e \, p \to e \, J/\psi \, \mathrm{jet} \, X$.…

High Energy Physics - Phenomenology · Physics 2019-12-10 Umberto D'Alesio , Francesco Murgia , Cristian Pisano , Pieter Taels

Within the Color Glass Condensate effective theory, we reconsider the next-to-leading order (NLO) calculation of the single inclusive particle production at forward rapidities in proton-nucleus collisions at high energy. Focusing on quark…

High Energy Physics - Phenomenology · Physics 2017-02-01 E. Iancu , A. H. Mueller , D. N. Triantafyllopoulos

By using the formalism of the light-cone wave function along with the colour glass condensate effective theory, we consider next-to-leading order (NLO) corrections to the production of a pair of hadrons in electron-proton, or…

High Energy Physics - Phenomenology · Physics 2023-08-02 Edmond Iancu , Yair Mulian

We study open heavy flavor meson production in proton-nucleus (pA) collisions at RHIC and LHC energies within the Color Glass Condensate framework. We use the unintegrated gluon distribution at small Bjorken's x in the proton obtained by…

High Energy Physics - Phenomenology · Physics 2015-06-16 Hirotsugu Fujii , Kazuhiro Watanabe

We consider spin asymmetries for prompt photon production in collisions of longitudinally polarized hadrons. This reaction will be a key tool at the BNL-RHIC pp collider for determining the gluon spin density in a polarized proton. We study…

High Energy Physics - Phenomenology · Physics 2007-05-23 Werner Vogelsang

We present a new method to systematically include corrections to the eikonal approximation in the background field formalism. Specifically, we calculate the subleading, power-suppressed corrections due to the finite width of the target or…

High Energy Physics - Phenomenology · Physics 2015-06-19 Tolga Altinoluk , Néstor Armesto , Guillaume Beuf , Mauricio Martínez , Carlos A. Salgado

We discuss proton-nucleus collisions in the framework of the color glass condensate. By assuming that the proton can be described as a low density color source, we solve exactly the Yang-Mills equations corresponding to this type of…

High Energy Physics - Phenomenology · Physics 2017-08-23 J. -P. Blaizot , F. Gelis , R. Venugopalan

We derive expressions for the gluon production cross sections in the single diffractive proton-nucleus scattering and DIS processes in a quasi-classical approximation. The resulting cross sections include the effects of all multiple…

High Energy Physics - Phenomenology · Physics 2014-11-17 Yuri V. Kovchegov