High-Energy Resummation in Di-hadron Production at the LHC

Abstract

We propose to study at the Large Hadron Collider (LHC) the inclusive production of a pair of hadrons (a "di-hadron" system) in a kinematics where two detected hadrons with high transverse momenta are separated by a large interval of rapidity. This process has much in common with the widely discussed Mueller-Navelet jet production and can also be used to access the dynamics of hard proton-parton interactions in the Regge limit. For both processes large contributions enhanced by logarithms of energy can be resummed in perturbation theory within the Balitsky-Fadin-Kuraev-Lipatov (BFKL) formalism with next-to-leading logarithmic accuracy (NLA). The experimental study of di-hadron production would provide with an additional clear channel to test the BFKL dynamics. We present here the first theoretical predictions for cross sections and azimuthal angle correlations of the di-hadrons produced with LHC kinematics.

13 pages, 4 figures; some text, one figure and three references added; version accepted for publication on Phys. Rev. D

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• Global Analysis of Fragmentation Functions for Protons and Charged Hadrons
• Determination of fragmentation functions and their uncertainties
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• Tetraquark-Jet Systems at the High-Luminosity LHC
• Multi-jet production in the high energy limit at LHC
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• Probing the BFKL dynamics in the Vector Meson Photoproduction at large -- $t$ in $pPb$ collisions at the CERN LHC
• High-energy effects in forward inclusive dijet and hadron-jet production
• Inclusive charged light di-hadron production at 7 and 13 TeV LHC in the full NLA BFKL approach
• All-charm tetraquarks at hadron colliders: A high-precision fragmentation perspective
• From semi-hard processes to the unintegrated gluon distribution: a phenomenological path in the high-energy framework
• Multimodal Fragmentation of All-Heavy Pentaquarks: Uncertainty-Aware Predictions for Hadron Colliders
• Analysis of the Pion Electromagnetic Form Factor with Next-to-Next-to-Leading Order QCD Corrections
• The Forward Physics Facility at the High-Luminosity LHC
• Inclusive three jet production at the LHC at 7 and 13 TeV collision energies