Planar three-loop QCD helicity amplitudes for V+jet production at hadron colliders

Thomas Gehrmann; Petr Jakubčík; Cesare Carlo Mella; Nikolaos Syrrakos; Lorenzo Tancredi

doi:10.1016/j.physletb.2023.138369

Planar three-loop QCD helicity amplitudes for V+jet production at hadron colliders

Thomas Gehrmann, Petr Jakubčík, Cesare Carlo Mella, Nikolaos Syrrakos, Lorenzo Tancredi

Assistant Professorship of Theoretical Particle Physics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson V=Z,W^±,γ^⁎, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections encompass the leading colour factors N³, N²N_f, NN_f² and N_f³. We provide the finite remainders of the independent helicity amplitudes in terms of multiple polylogarithms, continued to all kinematic regions and in a form which is compact and lends itself to efficient numerical evaluation. The presented amplitude respects the conjectured symbol-adjacency constraints for amplitudes with three massless and one massive leg.

Original language	English
Article number	138369
Journal	Physics Letters B
Volume	848
DOIs	https://doi.org/10.1016/j.physletb.2023.138369
State	Published - Jan 2024

Access to Document

10.1016/j.physletb.2023.138369

Cite this

@article{763e327a46c4494d85a5a213ec9e6676,

title = "Planar three-loop QCD helicity amplitudes for V+jet production at hadron colliders",

abstract = "We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson V=Z,W±,γ⁎, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections encompass the leading colour factors N3, N2Nf, NNf2 and Nf3. We provide the finite remainders of the independent helicity amplitudes in terms of multiple polylogarithms, continued to all kinematic regions and in a form which is compact and lends itself to efficient numerical evaluation. The presented amplitude respects the conjectured symbol-adjacency constraints for amplitudes with three massless and one massive leg.",

author = "Thomas Gehrmann and Petr Jakub{\v c}{\'i}k and Mella, {Cesare Carlo} and Nikolaos Syrrakos and Lorenzo Tancredi",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2024",

month = jan,

doi = "10.1016/j.physletb.2023.138369",

language = "English",

volume = "848",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Planar three-loop QCD helicity amplitudes for V+jet production at hadron colliders

AU - Gehrmann, Thomas

AU - Jakubčík, Petr

AU - Mella, Cesare Carlo

AU - Syrrakos, Nikolaos

AU - Tancredi, Lorenzo

PY - 2024/1

Y1 - 2024/1

N2 - We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson V=Z,W±,γ⁎, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections encompass the leading colour factors N3, N2Nf, NNf2 and Nf3. We provide the finite remainders of the independent helicity amplitudes in terms of multiple polylogarithms, continued to all kinematic regions and in a form which is compact and lends itself to efficient numerical evaluation. The presented amplitude respects the conjectured symbol-adjacency constraints for amplitudes with three massless and one massive leg.

AB - We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson V=Z,W±,γ⁎, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections encompass the leading colour factors N3, N2Nf, NNf2 and Nf3. We provide the finite remainders of the independent helicity amplitudes in terms of multiple polylogarithms, continued to all kinematic regions and in a form which is compact and lends itself to efficient numerical evaluation. The presented amplitude respects the conjectured symbol-adjacency constraints for amplitudes with three massless and one massive leg.

UR - http://www.scopus.com/inward/record.url?scp=85178647662&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2023.138369

DO - 10.1016/j.physletb.2023.138369

M3 - Article

AN - SCOPUS:85178647662

SN - 0370-2693

VL - 848

JO - Physics Letters B

JF - Physics Letters B

M1 - 138369

ER -

Planar three-loop QCD helicity amplitudes for V+jet production at hadron colliders

Abstract

Access to Document

Other files and links

Fingerprint

Cite this