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We present a detailed numerical investigation of semi-inclusive forward di-hadron production in proton-nucleus collisions employing the Color Glass Condensate effective theory. We focus on the regime where di-hadrons are produced nearly…

High Energy Physics - Phenomenology · Physics 2025-12-29 Paul Caucal , Zhong-Bo Kang , Piotr Korcyl , Farid Salazar , Björn Schenke , Tomasz Stebel , Raju Venugopalan , Wenbin Zhao

Using the color glass condensate formalism, we study the nuclear modification of forward $J/\psi$ and $D$ meson production in high energy proton-nucleus collisions at the LHC. We show that relying on the optical Glauber model to obtain the…

High Energy Physics - Phenomenology · Physics 2016-12-15 B. Ducloué , T. Lappi , H. Mäntysaari

In the framework of the kt-factorization approach, the isolated prompt photon pair production in pp and p \bar p collisions at high energies is studied. The consideration is based on the quark-antiquark annihilation, quark-gluon scattering…

High Energy Physics - Phenomenology · Physics 2013-02-11 A. V. Lipatov

We study multi-particle production with rapidity correlations in proton-nucleus collisions at high energy in the Color Glass Condensate framework. The high-energy evolution responsible for such correlations is governed by a generalization…

High Energy Physics - Phenomenology · Physics 2015-06-18 E. iancu , D. N. Triantafyllopoulos

We calculate exclusive vector meson photoproduction within the Color Glass Condensate framework in high-energy photon-nucleus scattering probed experimentally in ultra peripheral heavy ion collisions at RHIC and at the LHC. When the free…

High Energy Physics - Phenomenology · Physics 2024-07-16 Heikki Mäntysaari , Farid Salazar , Björn Schenke , Chun Shen , Wenbin Zhao

The exclusive $\Upsilon$ photoproduction in proton-proton and proton - nucleus collisions at LHC energies is investigated using the color dipole formalism and considering different models for the $\Upsilon$ wave function and forward dipole…

High Energy Physics - Phenomenology · Physics 2015-06-22 V. P. Goncalves , B. D. Moreira , F. S. Navarra

We present an analysis of data on single inclusive pion production measured by the LHCf collaboration in high-energy proton-proton and proton-nucleus at ultra-forward rapidities, $8.8 \leq\! y\leq \!10.8$. We also analyse forward RHIC data…

High Energy Physics - Phenomenology · Physics 2016-09-14 Javier L. Albacete , Pablo Guerrero Rodríguez , Yasushi Nara

The prompt photon production in hadronic collisions has a long history of providing information on the substructure of hadrons and testing the perturbative techniques of QCD. Some valuable information about the parton densities in the…

High Energy Physics - Phenomenology · Physics 2017-03-14 Muhammad Goharipour , Hossein Mehraban

Using the small-$x$ Improved Transverse Momentum Dependent factorization (ITMD), which, for a general two-to-two massless scattering can be proved within the Color Glass Condensate (CGC) theory for transverse momenta of particles greater…

High Energy Physics - Phenomenology · Physics 2023-06-21 Ishita Ganguli , Andreas van Hameren , Piotr Kotko , Krzysztof Kutak

The nuclear suppression of forward $J/\psi$ production in high energy proton-nucleus collisions can be used as a probe of gluon saturation at small $x$. In an earlier work we studied this suppression in minimum bias collisions in the Color…

High Energy Physics - Phenomenology · Physics 2016-07-05 B. Ducloué , T. Lappi , H. Mäntysaari

We calculate the production of a photon and two jets at forward rapidity in proton-nucleus collisions, within the hybrid dilute-dense framework in the Color Glass Condensate (CGC) formalism. After obtaining the cross section for both the…

High Energy Physics - Phenomenology · Physics 2019-09-04 Tolga Altinoluk , Renaud Boussarie , Cyrille Marquet , Pieter Taels

We present an universal treatment for a substantial nuclear suppression representing a common feature of all known reactions on nuclear targets (forward production of high-pT hadrons, production of direct photons, the Drell-Yan process,…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Nemchik , I. K. Potashnikova

We investigate direct photon production in pp collisions at the energies of RHIC, CDF and LHC, at different rapidities employing various color-dipole models. The cross section peaks at forward rapidities due to the abelian dynamics of…

High Energy Physics - Phenomenology · Physics 2009-04-22 B. Z. Kopeliovich , E. Levin , A. H. Rezaeian , Ivan Schmidt

The forthcoming LHC measurements in proton-nucleus (pA) collisions at forward rapidities can discriminate between the color glass condensate (CGC) and alternative approaches including standard collinear factorization one. We report some of…

High Energy Physics - Phenomenology · Physics 2013-10-17 Amir H. Rezaeian

Prompt photon production in hadronic collisions at the RHIC and the LHC energies is investigated within the QCD color dipole approach. Predictions for the nuclear modification factor in $pA$ collisions are evaluated based on parton…

High Energy Physics - Phenomenology · Physics 2020-11-11 G. Sampaio dos Santos , G. Gil da Silveira , M. V. T. Machado

We perform the analytical next-to-leading order calculation of the process $p+A\to \gamma^{*}+\mathrm{jet}+X$, at forward rapidities and low $x$. These kinematics justify a hybrid approach, where a quark from the \textquoteleft projectile'…

High Energy Physics - Phenomenology · Physics 2023-08-07 Pieter Taels

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

An accurate knowledge of nuclear parton distribution functions (nPDFs) is an essential ingredient of high energy physics calculations when the processes are involving nuclei in the initial state. It is well known now that the prompt photon…

High Energy Physics - Phenomenology · Physics 2019-05-29 Muhammad Goharipour , S. Rostami

The production of forward $J/\psi$ mesons in proton-nucleus collisions can provide important information on gluon saturation. In a previous work we studied this process in the Color Glass Condensate framework, describing the target using a…

High Energy Physics - Phenomenology · Physics 2016-11-23 B. Ducloué , T. Lappi , H. Mäntysaari

Employing the so-called hybrid formalism, we calculate the cross section of inclusive hadron production in proton-proton collisions at forward rapidity in small-$x$ formalism at one-loop order. For the case of hadron production at forward…

High Energy Physics - Phenomenology · Physics 2016-12-07 Kazuhiro Watanabe , Bo-Wen Xiao