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We calculate production cross sections of a forward quark-gluon pair and of two gluons at mid-rapidity in Deep Inelastic Scattering and in high energy proton-nucleus collisions. The calculation is performed in the framework of the Color…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jamal Jalilian-Marian , Yuri V. Kovchegov

We study the production and the evolution of quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions, within the color flux-tube model. We introduce the gluonic component in the Boltzmann equation, which we solve…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gouranga C Nayak , V. Ravishankar

The nuclear modification factors R_{AA} and R_{CP} have been used to measure medium-induced suppression in heavy-ion collisions at sqrt{s_{NN}} = 200GeV which was among the earliest evidence for the existence of a strongly interacting…

Nuclear Experiment · Physics 2019-08-13 Stephen P. Horvat

We discuss QCD evolution equations for two and three particle correlation functions of quarks and gluon fields in a hadron which describe development of the momentum distribution of a parton system with a change of the wave length of a…

High Energy Physics - Phenomenology · Physics 2017-08-23 A. V. Belitsky

We investigate the question whether Lipatov's high energy effective action is capable to reproduce quark and gluon propagators which resum interaction with a strong background field within high energy factorization. Such propagators are…

High Energy Physics - Phenomenology · Physics 2018-09-03 Martin Hentschinski

We compute initial conditions in heavy-ion collisions within the Color Glass Condensate (CGC) framework by combining the impact parameter dependent saturation model (IP-Sat) with the classical Yang-Mills description of initial Glasma…

Nuclear Theory · Physics 2012-06-20 Bjoern Schenke , Prithwish Tribedy , Raju Venugopalan

We consider high energy scattering in the effective theory of the Color Glass Condensate. The most convenient degrees of freedom are Wilson lines encoding multiple gluon exchanges, whose evolution with energy follows the JIMWLK equation.…

High Energy Physics - Phenomenology · Physics 2026-04-30 T. Lappi , D. N. Triantafyllopoulos

Perturbative unitarization from non-linear effects is thought to deplete the gluon density for transverse momenta below the saturation scale. Such effects also modify the distribution of gluons produced in heavy-ion collisions in transverse…

Nuclear Theory · Physics 2011-03-17 Adrian Dumitru

We derive the formulae for the cross section of J/Psi production in high energy pA and AA collisions taking into account the gluon saturation/color glass condensate effects. We then perform the numerical calculations of the corresponding…

High Energy Physics - Phenomenology · Physics 2015-05-30 F. Dominguez , D. E. Kharzeev , E. M. Levin , A. H. Mueller , K. Tuchin

Hadron-hadron interaction and Deep Inelastic Scattering (DIS) at very high energies is dominated by events at small-$x_B$ regime. Interesting and complex physical content of this regime is described by a phenomenological model called…

High Energy Physics - Phenomenology · Physics 2011-01-25 Houri Ziaeepour

We describe the dynamics of gluons and quarks in a relativistic nuclear collision, within the framework of classical mean-field transport theory, by the coupled equations for the classical Yang-Mills field and a collection of colored point…

Nuclear Theory · Physics 2007-05-23 W. Poeschl , B. Mueller

We study the process $\gamma A \to q \bar{q} g+X$ in the Color Glass Condensate (CGC) effective theory. After obtaining the cross section, we consider two kinematic limits which are encompassed in our result. In the so-called correlation…

High Energy Physics - Phenomenology · Physics 2020-10-12 Tolga Altinoluk , Renaud Boussarie , Cyrille Marquet , Pieter Taels

It has been found that the gluon density inside the proton grows rapidly at small momentum fractions. Quantum Chromodynamics (QCD) predicts that this growth can be regulated by nonlinear effects, ultimately leading to gluon saturation.…

High Energy Physics - Phenomenology · Physics 2025-09-03 Kiera Cassar , Zhen Wang , Xiaoxuan Chu , Elke-Caroline Aschenauer

We evaluate the invariant cross section for production of dileptons in forward rapidities at RHIC and LHC, using the Color Glass Condensate formalism and present results for the nuclear modification factor $R_{d(p)A}$ as a function of…

Nuclear Theory · Physics 2010-11-30 Jamal Jalilian-Marian

Experimental processes that are sensitive to parton Wigner distributions provide a powerful tool to advance our understanding of proton structure. In this work, we compute gluon Wigner and Husimi distributions of protons within the Color…

High Energy Physics - Phenomenology · Physics 2019-04-17 Heikki Mäntysaari , Niklas Mueller , Björn Schenke

We consider the J/Psi production in proton (deuteron) -- nucleus collisions at high energies. We argue that the production mechanism in this case is different from that in pp collisions due to gluon saturation in the nucleus and formation…

High Energy Physics - Phenomenology · Physics 2008-11-26 Dmitri Kharzeev , Kirill Tuchin

Nuclear shadowing and color glass condensate are possible only at sufficiently small x where parton clouds of different nucleons overlap in the longitudinal direction. Another condition vital for these effect, an overlap of partons in…

High Energy Physics - Phenomenology · Physics 2010-11-30 B. Z. Kopeliovich , B. Povh

We consider the influence of parton saturation in the Color Glass Condensate on the back-to-back azimuthal correlations of high $p_T$ hadrons in $pA$ (or $dA$) collisions. When both near--side and away--side hadrons are detected at…

High Energy Physics - Phenomenology · Physics 2010-11-30 Dmitri Kharzeev , Eugene Levin , Larry McLerran

We present a review of parton saturation/Color Glass Condensate physics in the context of deuteron-gold ($d+Au$) collisions at RHIC. Color Glass Condensate physics is a universal description of all high energy hadronic and nuclear…

High Energy Physics - Phenomenology · Physics 2011-01-25 Jamal Jalilian-Marian , Yuri V. Kovchegov

The EMC- and Cronin-effects are explained by a unitarized evolution equation, where the shadowing and antishadowing corrections are dynamically produced by gluon fusions. For this sake, an alternative form of the GLR-MQ-ZRS equation is…

High Energy Physics - Phenomenology · Physics 2013-01-29 Wei Zhu , Jianhong Ruan , Fengyao Hou