Small-$x$ dynamics in forward-central dijet decorrelations at the LHC

Abstract

We provide a description, within the High Energy Factorization formalism, of central-forward dijet decorrelation data measured by the CMS experiment and the predictions for nuclear modification ratio~$R_{pA}$ in p+Pb collisions. In our study, we use the unintegrated gluon density derived from the BFKL and BK equations supplemented with subleading corrections and a hard scale dependence. The latter is introduced at the final step of the calculation by reweighting the Monte Carlo generated events using suitable Sudakov form factors, without changing the total cross section. We achieve a good description of data in the whole region of the azimuthal angle.

10 pages, 4 figures; legends of the plots corrected, references added, minor refinements

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Cited by in corpus (14)

• Mining for Gluon Saturation at Colliders
• Forward di-jet production in p+Pb collisions in the small-x improved TMD factorization framework
• Broadening and saturation effects in dijet azimuthal correlations in p-p and p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}=$ 5.02 TeV
• Hard scale dependent gluon density, saturation and forward-forward dijet production at the LHC
• Forward Higgs production within high energy factorization in the heavy quark limit at next-to-leading order accuracy
• Production of two charm quark-antiquark pairs in single-parton scattering within the $k_t$-factorization approach
• Energy evolution of T-odd gluon TMDs at small $x$
• Exploring minijets beyond the leading power
• Towards tomography of quark-gluon plasma using double inclusive forward-central jets in Pb-Pb collision
• Kinematical constraint effects in the evolution equations based on angular ordering
• QCD theory overview
• Gluon distributions from Oliveira-Martin-Ryskin combined BFKL+DGLAP evolution equations
• ITMD factorization and broadening effects in production of forward di-jets
• Impact of coherence and low x effects on decorelations of forward-central jets