Breaking of k_\perp-factorization for Single Jet Production off Nuclei

Abstract

The linear k_\perp-factorization is part and parcel of the pQCD description of high energy hard processes off free nucleons. In the case of heavy nuclear targets the very concept of nuclear parton density becomes ill-defined as exemplified by the recent derivation [2] of nonlinear nuclear k_\perp-factorization for forward dijet production in DIS off nuclei. Here we report a derivation of the related breaking of k_\perp-factorization for single-jet processes. We present a general formalism and apply it to several cases of practical interest: open charm and quark and gluon jet production in the central to beam fragmentation region of γ^*p,γ^*A, pp and pA collisions. We show how the pattern of k_\perp-factorization breaking and the nature and number of exchanged nuclear pomerons do change within the phase space of produced quark and gluon jets. As an application of the nonlinear k_\perp-factorization we discuss the Cronin effect. Our results are also applicable to the p_\perp-dependence of the Landau-Pomeranchuk-Migdal effect for, and nuclear quenching of, jets produced in the proton hemisphere of pA collisions.

55 pages, 9 eps figures, presentation shortened, a number of typos removed, to appear in Phys. Rev. D

Cited by in corpus (33)

• Nuclear shadowing
• Forward inclusive dijet production and azimuthal correlations in pA collisions
• Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV
• Study of the Fundamental Structure of Matter with an Electron-Ion Collider
• Particle Correlations in Saturated QCD Matter
• Treading on the cut: Semi inclusive observables at high energy
• Drell-Yan production and Lam-Tung relation in the Color Glass Condensate formalism
• Nonlinear k_\perp-factorization for Gluon-Gluon Dijets Produced off Nuclear Targets
• Nonlinear k_\perp-factorization for Quark-Gluon Dijet Production off Nuclei
• 3D Jet Tomography of the Twisted Color Glass Condensate
• Nonuniversality Aspects of Nonlinear k_\perp-factorization for Hard Dijets
• Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model
• Saturation Physics in Ultra High Energy Cosmic Rays: Heavy Quark Production
• Quenching of Leading Jets and Particles: the p_t Dependent Landau-Pomeranchuk-Migdal effect from Nonlinear k_t Factorization
• Low mass Drell-Yan production of lepton pairs at forward directions at the LHC: a hybrid approach
• Quark production in high energy proton-nucleus collisions
• Unitarity cutting rules for the nucleus excitation and topological cross sections in hard production off nuclei from nonlinear k_t-factorization
• The Color Glass Condensate: an overview
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• Production of two $c\bar{c}$ pairs in gluon-gluon scattering in high energy proton-proton collisions
• Exclusive dilepton production via timelike Compton scattering in heavy ion collisions
• Impact of intrinsic charm amount in the nucleon and saturation effects on the prompt atmospheric ${\nu }_{\mu }$ flux for IceCube
• Looking forward for Color Glass Condensate signatures
• Distribution of multiple scatterings in proton-nucleus collisions at high energy
• Single inclusive jet photoproduction at very forward rapidities in $pp$ and $pPb$ collisions at the LHC
• Diffractive dissociation of gluons into heavy quark-antiquark pairs in proton-proton collisions
• Violation of kT factorization in quark production from the Color Glass Condensate
• Unintegrated gluon distributions for forward jets at LHC
• Glue in the pomeron from nonlinear k_\perp-factorization
• Fate of k_perp-factorization for hard processes in nuclear environment
• Forward pion production at large transverse momenta in pp collisions and beyond
• Unintegrated gluon distribution of a nucleus and photon-jet correlations
• Hard Scattering in a Nuclear Environment: Farewell to Linear $k_{\perp }$-Factorization