Exclusive and diffractive quarkonium-pair production at the LHC and FCC

Gonçalves, V. P.; Silva, R. Palota da

doi:10.1103/physrevd.101.034025

Cited by 12 publications

(3 citation statements)

References 87 publications

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“…A selection of recent results on forward and central quarkonium production in (ultra-peripheral) hadron and lepton-hadron collisions can be found in Refs. [115][116][117][118][119][120][121][122][123][124][125][126][127][128][129][130][131]. Combining the information coming from single-forward emissions of quarkonia with the one encoded in single-forward detections of light vector mesons [132][133][134][135][136][137][138][139][140][141] and in the forward Drell-Yan di-lepton reaction [142][143][144] will permits us to perform an extensive scan of the intersection kinematic range between TMD and high-energy dynamics.…”

Section: Hors D'oeuvrementioning

confidence: 99%

Inclusive production of a $J/ψ$ or a $Υ$ from single-parton fragmentation plus a jet in hybrid factorization

Celiberto¹,

Fucilla²

2022

Preprint

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We investigate the inclusive hadroproduction of a heavy quarkonium (J/ψ or Υ), in association with a light-flavored jet, as a testing ground for the semi-hard regime of QCD. Our theoretical setup is the hybrid high-energy and collinear factorization, where the standard collinear approach is supplemented by the t-channel resummation of leading and next-to-leading energy logarithms à la BFKL. We present predictions for rapidity and azimuthal-angle differential distributions, hunting for stabilizing effects of the high-energy series under higher-order corrections. Our reaction represents an additional channel to test the production mechanisms of quarkonia at high energies and large transverse momenta and to possibly shed light on the transition region from heavy-quark pair production to single-parton fragmentation of J/ψ and Υ states.

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Section: Hors D'oeuvrementioning

confidence: 99%

Inclusive production of a $J/ψ$ or a $Υ$ from single-parton fragmentation plus a jet in hybrid factorization

Celiberto¹,

Fucilla²

2022

Preprint

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“…Some recent results on forward and central quarkonium production in (ultra-peripheral) hadron and lepton-hadron scatterings can be found in Refs. [125][126][127][128][129][130][131][132][133][134][135][136][137][138][139][140][141][142]. The formation mechanism of hidden heavyflavored tetra-and penta-quarks was studied [143,144] by means of the hadro-quarkonium approach [145,146].…”

Section: Introductionmentioning

confidence: 99%

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Celiberto

2023

Universe

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In this review, we discuss and extend the study of the inclusive production of vector quarkonia, J/ψ and Υ, emitted with large transverse momenta and rapidities at the LHC. We adopt the novel ZCW19+ determination of fragmentation functions to depict the quarkonium production mechanism at the next-to-leading level of perturbative QCD. This approach is based on the nonrelativistic QCD formalism well adapted to describe the formation of a quarkonium state from the collinear fragmentation of a gluon or a constituent heavy quark at the lowest energy scale. We rely upon the NLL/NLO+ hybrid high-energy and collinear factorization for differential cross-sections, where the collinear formalism is enhanced by the BFKL resummation of next-to-leading energy logarithms arising in the t-channel. We employ the method to analyze the behavior of the rapidity distributions for double-inclusive vector quarkonium and inclusive vector quarkonium plus jet emissions. We discover that the natural stability of the high-energy series, previously seen in observables sensitive to the emission of hadrons with heavy flavor detected in the rapidity acceptance of LHC barrel calorimeters, becomes even more manifest when these particles are tagged in forward regions covered by endcaps. Our findings present the important message that vector quarkonia at the LHC via hybrid factorization offer a unique chance to perform precision studies of high-energy QCD, as well as an intriguing opportunity to shed light on the quarkonium production puzzle.

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“…For instance, Gonçalves presented a systematical analysis of exclusive production of vector mesons in hadronic collisions in Refs. [33][34][35][36][37], where the predictions for transverse momentum and rapidity distributions considering different phenomenological models were estimated. Machado et al studied the inclusive and exclusive J/ψ, ψ(2S), and Υ photoproductions in the proton-nucleus and nucleusnucleus collisions at LHC within the color dipole formalism [38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Inelastic heavy quarkonium photoproduction in ultrarelativistic heavy-ion collisions

Ma¹,

Lü²,

Zhang³

2022

Preprint

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The inelastic charmonium (J/ψ, ψ(2S), ηc, hc and χcJ ) and bottomonium (Υ(nS), η b , h b , and χ bJ ) photoproductions in ultrarelativistic heavy-ion collisions at LHC energies are studied, where the fragmentation processes are included. Based on the factorization formalism of non-relativistic QCD, an exact treatment is developed, which can weight the contribution from different channels and recovers the Weizsäcker-Williams approximation (WWA) near the region Q 2 ∼ 0. The relevant kinematical relations are also achieved. We present a comprehensive analysis for the properties of WWA in heavy-ion collisions, and discuss the contribution of inelastic photoproduction processes to the heavy quarkonium production. The Q 2 -, y-, √ s-, and pT -dependent cross sections, and the total cross sections are estimated. It is shown that the inelastic photoproduction and fragmentation processes can provide the evident modification to the heavy quarkonium production in p-p and P b-P b collisions at LHC energies, where the ultra-incoherent photon emission plays a very important role. Moreover, the WWA is only effective in very restricted domains, and the exact treatment can naturally avoid double counting and WWA errors.

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Exclusive and diffractive quarkonium-pair production at the LHC and FCC

Cited by 12 publications

References 87 publications

Inclusive production of a $J/ψ$ or a $Υ$ from single-parton fragmentation plus a jet in hybrid factorization

Inclusive production of a $J/ψ$ or a $Υ$ from single-parton fragmentation plus a jet in hybrid factorization

Vector Quarkonia at the LHC with Jethad: A High-Energy Viewpoint

Inelastic heavy quarkonium photoproduction in ultrarelativistic heavy-ion collisions

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