BFKL azimuthal imprints in inclusive three-jet production at 7 and 13 TeV

Caporale, F.; Celiberto, Francesco Giovanni; Chachamis, Grigorios; Gómez, D. Gordo; Vera, A. Sabio

doi:10.1016/j.nuclphysb.2016.07.012

Cited by 61 publications

(48 citation statements)

References 72 publications

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“…An interesting option, the detection of three jets, well separated in rapidity from each other, has been proposed in Refs. [41,42] and recently investigated with NLA BFKL accuracy in Ref. [43].…”

Section: Introductionmentioning

confidence: 99%

Dihadron production at the LHC: full next-to-leading BFKL calculation

Celiberto

Ivanov

Murdaca³

et al. 2017

Eur. Phys. J. C

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The study of the inclusive production of a pair of charged light hadrons (a "dihadron" system) featuring high transverse momenta and well separated in rapidity represents a clear channel for the test of the BFKL dynamics at the Large Hadron Collider (LHC). This process has much in common with the well-known Mueller-Navelet jet production; however, hadrons can be detected at much smaller values of the transverse momentum than jets, thus allowing to explore an additional kinematic range, supplementary to the one studied with Mueller-Navelet jets. Furthermore, it makes it possible to constrain not only the parton densities (PDFs) for the initial proton, but also the parton fragmentation functions (FFs) describing the detected hadron in the final state. Here, we present the first full NLA BFKL analysis for cross sections and azimuthal angle correlations for dihadrons produced in the LHC kinematic ranges. We make use of the BrodskyLapage-Mackenzie optimization method to set the values of the renormalization scale and study the effect of choosing different values for the factorization scale. We also gauge the uncertainty coming from the use of different PDF and FF parametrizations.

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Section: Introductionmentioning

confidence: 99%

Dihadron production at the LHC: full next-to-leading BFKL calculation

Celiberto

Ivanov

Murdaca³

et al. 2017

Eur. Phys. J. C

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“…Our predictions in [37], although may in principle be directly compared to experimental data once these are available, do not resolve two issues: (I) They do not offer any estimate of the theoretical uncertainty that comes into play once higher order corrections are considered. (II) Since we restricted the central jet to be produced in the middle of the rapidity interval between the outermost jets, one could possibly raise concerns of whether a experimental analysis following the kinematical setup used in Ref.…”

Section: Introductionmentioning

confidence: 94%

“…These processes are inclusive three-jet [36,37] and four-jet production [38,39] with the outermost jets widely separated in rapidity Y , whereas any other tagged jet is to be found in more central regions of the detector. The main idea behind all this effort is that we need more exclusive final states in order to be able to address a number of theoretical issues, e.g.…”

Section: Introductionmentioning

confidence: 99%

Stability of azimuthal-angle observables under higher order corrections in inclusive three-jet production

et al. 2017

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Recently, a new family of observables consisting of azimuthal-angle generalised ratios was proposed in a kinematical setup that resembles the usual Mueller-Navelet jets but with an additional tagged jet in the central region of rapidity. Non-tagged minijet activity between the three jets can affect significantly the azimuthal angle orientation of the jets and is accounted for by the introduction of two BFKL gluon Green functions. Here, we calculate the, presumably, most relevant higher order corrections to the observables by now convoluting the three leading-order jet vertices with two gluon Green functions at next-to-leading logarithmic approximation. The corrections appear to be mostly moderate giving us confidence that the recently proposed observables are actually an excellent way to probe the BFKL dynamics at the LHC. Furthermore, we allow for the jets to take values in different rapidity bins in various configurations such that a comparison between our predictions and the experimental data is a straightforward task. * 'La Caixa'-Severo Ochoa Scholar.

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“…In order to further and deeply probe the dynamical mechanisms behind partonic interactions in the Regge limit, s |t|, some other observables, sensitive to the BFKL dynamics, should be considered in the context of the LHC physics program. An interesting option, the detection of three and four jets, well separated in rapidity from each other, was recently suggested in [27,28] and investigated in [29][30][31][32]. In this paper a novel possibility, i.e.…”

Section: Introductionmentioning

confidence: 99%

Dihadron production at LHC: BFKL predictions for cross sections and azimuthal correlations

Celiberto

Ivanov

Murdaca

et al. 2017

AIP Conference Proceedings

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Abstract.A study of the inclusive production of a pair of hadrons (a "dihadron" system), having high transverse momenta and separated by a large interval of rapidity, is presented. This process has much in common with the widely discussed Mueller-Navelet jet production and can be also used to access the BFKL dynamics at proton colliders. Large contributions enhanced by logarithms of energy can be resummed in perturbation theory within the BFKL formalism in the next-to-leading logarithmic accuracy. The experimental study of dihadron production would provide with an additional clear channel to test the BFKL dynamics. The first theoretical predictions for cross sections and azimuthal angle correlations of the two hadrons produced with LHC kinematics are presented.

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BFKL azimuthal imprints in inclusive three-jet production at 7 and 13 TeV

Cited by 61 publications

References 72 publications

Dihadron production at the LHC: full next-to-leading BFKL calculation

Dihadron production at the LHC: full next-to-leading BFKL calculation

Stability of azimuthal-angle observables under higher order corrections in inclusive three-jet production

Dihadron production at LHC: BFKL predictions for cross sections and azimuthal correlations

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