Hadron-jet correlations in high-energy hadronic collisions at the LHC

Abstract

The inclusive production at the LHC of a charged light hadron and of a jet, featuring a wide separation in rapidity, is suggested as a new probe process for the investigation of the BFKL mechanism of resummation of energy logarithms in the QCD perturbative series. We present some predictions, tailored on the CMS and CASTOR acceptances, for the cross section averaged over the azimuthal angle between the identified jet and hadron and for azimuthal correlations. • both the hadron and the jet tagged by the CMS detector in their typical kinematic configurations, i.e.: k min H = 5 GeV, k min J = 35 GeV, y max H = −y min H = 2.4, y max J = −y min J = 4.7 [42]. For the sake of brevity, we will refer to this choice as the CMS-jet configuration;• a hadron always detected inside CMS in the range given above, together with a very R , √ s = 13 TeV, and Y ≤ 7.1 (CMS-jet configuration). backward jet tagged by CASTOR. In this peculiar, CASTOR-jet configuration, the jet lies in the typical range of the CASTOR experimental analyses, i.e. k min J = 5 GeV, y max J = −5.2, y min J = −6.6 [44],The value of k max H is constrained by the lower cutoff of the adopted FF parametrizations (see below) and is always fixed at 21.5 GeV. The value of k max J is instead constrained by

High-energy resummed distributions for the inclusive Higgs-plus-jet production at the LHC

“…All the numerical studies were completed making use of Jethad, a Fortran2008-Python3 hybrid library under development at our Group, which has been recently employed in the analysis of hadron-jet correlations [71] and of the inclusive heavy-flavored jet-pair hadroproduction [79]. An aux-Fig.…”

“…[33,34] for a review): the diffractive leptoproduction of two light vector mesons [35][36][37][38], the total cross section of two highly-virtual photons [39], the inclusive hadropro-0123456789(). : V,-vol duction of two jets featuring large transverse momenta and well separated in rapidity (Mueller-Navelet channel [40]), for which several phenomenological studies have appeared so far [41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57], the inclusive detection of two light-charged hadrons [58][59][60], three-and four-jet hadroproduction [61][62][63][64][65][66][67][68][69], J/ -jet [70], hadron-jet [71][72][73][74], Drell-Yan-jet [75,76] and heavy-quark pair photo- [77,78] and hadroproduction [79].…”

Inclusive Hadron-jet Production at the LHC

“…2 we compare C 0 in different NLA BFKL processes: Mueller-Navelet jet, hadron-jet and dihadron production at √ s = 7, 13 TeV in the CMS-jet case. We refer to Sections 3.3 and 3.4 of [36] for a detailed discussion of results, numerical tools and estimation of the uncertainties.…”

High-energy effects in forward inclusive dijet and hadron-jet production

“…We propose in this work the study of a novel semi-hard reaction in the NLA BFKL approach, the inclusive hadron-jet production [43,44], i.e. when a charged light hadron and a jet are emitted in the final state with large transverse momenta, κ H,J , and featuring a strong separation in rapidity.…”