Two-loop QCD helicity amplitudes for g g → Z g and g g → Z γ

Thomas Gehrmann; Lorenzo Tancredi; Erich Weihs

doi:10.1007/JHEP04(2013)101

Two-loop QCD helicity amplitudes for g g → Z g and g g → Z γ

Thomas Gehrmann, Lorenzo Tancredi, Erich Weihs

University of Zurich

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

32 Scopus citations

Abstract

We compute the helicity amplitudes for the processes gg → Zg and gg → Zγ to two loops in massless QCD. The perturbative expansion of these processes starts only at the one-loop level, such that our results are a crucial ingredient to the NLO corrections to Zγ and Z+jet production through gluon fusion.

Original language	English
Article number	101
Journal	Journal of High Energy Physics
Volume	2013
Issue number	4
DOIs	https://doi.org/10.1007/JHEP04(2013)101
State	Published - 2013
Externally published	Yes

Keywords

Hadronic Colliders
QCD Phenomenology

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10.1007/JHEP04(2013)101

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title = "Two-loop QCD helicity amplitudes for g g → Z g and g g → Z γ ",

abstract = "We compute the helicity amplitudes for the processes gg → Zg and gg → Zγ to two loops in massless QCD. The perturbative expansion of these processes starts only at the one-loop level, such that our results are a crucial ingredient to the NLO corrections to Zγ and Z+jet production through gluon fusion.",

keywords = "Hadronic Colliders, QCD Phenomenology",

author = "Thomas Gehrmann and Lorenzo Tancredi and Erich Weihs",

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year = "2013",

doi = "10.1007/JHEP04(2013)101",

language = "English",

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AU - Gehrmann, Thomas

AU - Tancredi, Lorenzo

AU - Weihs, Erich

PY - 2013

Y1 - 2013

N2 - We compute the helicity amplitudes for the processes gg → Zg and gg → Zγ to two loops in massless QCD. The perturbative expansion of these processes starts only at the one-loop level, such that our results are a crucial ingredient to the NLO corrections to Zγ and Z+jet production through gluon fusion.

AB - We compute the helicity amplitudes for the processes gg → Zg and gg → Zγ to two loops in massless QCD. The perturbative expansion of these processes starts only at the one-loop level, such that our results are a crucial ingredient to the NLO corrections to Zγ and Z+jet production through gluon fusion.

KW - Hadronic Colliders

KW - QCD Phenomenology

UR - http://www.scopus.com/inward/record.url?scp=84884584143&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2013)101

DO - 10.1007/JHEP04(2013)101

M3 - Article

AN - SCOPUS:84884584143

SN - 1126-6708

VL - 2013

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 101

ER -

Two-loop QCD helicity amplitudes for g g → Z g and g g → Z γ

Abstract

Keywords

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