The next-to-leading order Higgs impact factor in the infinite top-mass limit

Celiberto, Francesco Giovanni; Fucilla, Michael; Ivanov, Dmitry Yu.; Mohammed, Mohammed; Papa, Alessandro

doi:10.1007/jhep08(2022)092

Cited by 21 publications

(8 citation statements)

References 204 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They include: a) colliding-parton (quarks and gluons) impact factors [140,141], which are needed to calculate b) forward-jet [142][143][144][145][146][147] and c) forward light hadron [148] emission functions. Additionally, we mention: d) virtual photon to light vector meson [149], e) light-by-light impact factors [150][151][152][153][154][155], and f) the emission function for the production of a forward Higgs boson in the infinite top-mass limit [156,157] (see also Refs. [158,159]).…”

Section: High-energy Qcd Phenomenology: An Incomplete Summarymentioning

confidence: 99%

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

Celiberto

2023

Universe

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: High-energy Qcd Phenomenology: An Incomplete Summarymentioning

confidence: 99%

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

Celiberto

2023

Universe

Self Cite

View full text Add to dashboard Cite

show abstract

“…to analyze the DIS processes [58,59] and total γ * γ * cross-sections [60]. Other examples are the forward hadroproduction of heavy quarks [61][62][63], dihadrons [64,65], the Higgs boson [66][67][68] and heavy baryons [69]. So far the calculations of the NLO impact factors were performed process-by-process in an explicit form.…”

Section: Jhep11(2022)103mentioning

confidence: 99%

Hybrid kT -factorization and impact factors at NLO

Hameren

Motyka

Ziarko

2022

J. High Energ. Phys.

View full text Add to dashboard Cite

In the hybrid kT -factorization formula, one initial-state parton momentum is space-like and carries non-vanishing transverse components, while the other is on-shell. We promote this factorization formula to next-to-leading order. Studying the partonic cross section, we identify all soft and collinear divergencies in the real and virtual contribution, and recognize that all non-cancelling ones can be attributed to PDF evolution, evolution kernel, and target impact factors. In result, we construct a framework that may be used to compute NLO impact factors in general. In particular, we recover known expressions for inclusive NLO quark-and gluon impact factor corrections.

show abstract

“…This is in line with the BFKL behavior of the small-x UGD, which predicts an "equal number" of unpolarized and the linearly-polarized gluons up to higher-twist effects. This is a contact point between the TMD and the BFKL approach that could be explored via studies on processes featuring a natural stability of the high-energy resummation [218,[695][696][697][698][699][700][701][702][703][704][705][706][707][708]. Furthermore, even if all replicas reproduce similar collinear PDFs, they predict very different results for the TMD PDFs in Fig.…”

Section: Gluon Tmd Pdfsmentioning

confidence: 99%

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Amoroso¹,

Apyan²,

Armesto³

et al. 2022

Acta Phys. Pol. B

View full text Add to dashboard Cite

An overwhelming number of theoretical predictions for hadron colliders require parton distribution functions (PDFs), which are an important ingredient of theory infrastructure for the next generation of high-energy experiments. This whitepaper summarizes the status and future prospects for determination of high-precision PDFs applicable in a wide range of energies and experiments, in particular in precision tests of the Standard Model and in new physics searches at the high-luminosity Large Hadron Collider and Electron-Ion Collider. We discuss the envisioned advancements in experimental measurements, QCD theory, global analysis methodology, and computing that are necessary to bring unpolarized PDFs in the nucleon to the N2LO and N3LO accuracy in the QCD coupling strength. Special attention is given to the new tasks that emerge in the era of the precision PDF analysis, such as those focusing on the robust control of systematic factors both in experimental measurements and theoretical computations. Various synergies between experimental and theoretical studies of the hadron structure are explored, including opportunities for studying PDFs for nuclear and meson targets, PDFs with electroweak contributions or dependence on the transverse momentum, for incisive comparisons between phenomenological models for the PDFs and computations on discrete lattice, and for cross-fertilization with machine learning/AI approaches.

show abstract

The next-to-leading order Higgs impact factor in the infinite top-mass limit

Cited by 21 publications

References 204 publications

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

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

Hybrid kT -factorization and impact factors at NLO

Snowmass 2021 Whitepaper: Proton Structure at the Precision Frontier

Contact Info

Product

Resources

About