Abstract
Recently, new observables in LHC inclusive events with three tagged jets were proposed. Here, we extend that proposal to events with four tagged jets. The events are characterized by one jet in the forward direction, one in the backward direction with a large rapidity distance Y from the first one and two more jets tagged in more central regions of the detector. In our setup, non-tagged associated mini-jet multiplicity is present and needs to be accounted for by the inclusion of BFKL gluon Green functions. The projection of the cross section on azimuthal-angle components opens up the opportunity for defining new ratios of correlation functions of the azimuthal-angle differences among the tagged jets that can be used as probes of the BFKL dynamics.
Highlights
The large hadron collider (LHC) gives a unique opportunity to study high energy scattering in quantum chromodynamics (QCD)
In an experimental setup containing final state jets with a large rapidity separation, the Balitsky–Fadin–Kuraev–Lipatov (BFKL) framework in the leading logarithmic (LL) [1,2,3,4,5,6,7,8,9,10,11] and next-toleading logarithmic (NLL) approximation [12,13] presents itself as a powerful tool to probe the dominant dynamics of the QCD high energy limit
We presented a first phenomenological study for some aspects of the jets’ azimuthal profile in LHC inclusive fourjet production within the BFKL resummation framework
Summary
The large hadron collider (LHC) gives a unique opportunity to study high energy scattering in quantum chromodynamics (QCD). Jet production studies play a crucial role in high energy QCD phenomenology since the plethora of data makes possible the analysis of even more exclusive observables than usual. Jet production studies in the last decade searching for the onset of BFKL effects were mainly focused on Mueller–Navelet jets (dijets) [14] in hadronic colliders. On more theoretical grounds, these observables probe fundamental characteristics of the BFKL ladder.
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