Gluon saturation in dijet production in p-Pb collisions at Large Hadron Collider

Abstract

We study saturation effects in the production of dijets in p-p and p-Pb collisions using the framework of high energy factorization. We focus on central-forward jet configurations, which allow for probing gluon density at low longitudinal momentum fraction. We find significant suppression of the central-forward jet decorrelations in p-Pb compared to p-p, which we attribute to saturation of gluon density in nuclei.

16 pages, 8 figures; v2: minor textual changes, reference added; v3: extra paragraph and figure for RHIC, several clarifying sentences and references added, version accepted by PRD

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• Jets in the forward region at the LHC
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• Low-x QCD physics from RHIC and HERA to the LHC
• Gluon density and $F_2$ functions from BK equation with impact parameter dependence
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• Introduction to the Physics of Saturation
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• Structure functions from renormalization group improved small $x$ evolution
• Single inclusive jet transverse momentum and energy spectra at very forward rapidity in proton-proton collisions with $\sqrt{s}=7$ and 13 TeV
• Production of forward heavy-flavour dijets at the LHCb within $k_T$-factorization approach
• Description of di-hadron saturation signals within a universal nuclear parton distribution function approach
• Numerical solution of the integral form of the resummed Balitsky-Kovchegov equation
• Kinematical constraint effects in the evolution equations based on angular ordering
• CGC and saturation approach: Impact-parameter dependent model of perturbative QCD and combined HERA data
• The dynamics of strongly correlated gluons at high energies
• Unintegrated gluon distributions for forward jets at LHC
• The rapidity dependence of the average transverse momentum in p+p and p+Pb collisions - revisited
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• Gluon distributions from Oliveira-Martin-Ryskin combined BFKL+DGLAP evolution equations
• The Forward Physics Facility at the High-Luminosity LHC
• Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions
• Markov Chain Mote Carlo solution of BK equation through Newton-Kantorovich method
• High-energy resummation effects in the production of Mueller-Navelet dijet at the LHC
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