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Two-loop QCD helicity amplitudes for gg → Z g and gg →Zγ


Gehrmann, Thomas; Tancredi, Lorenzo; Weihs, Erich (2013). Two-loop QCD helicity amplitudes for gg → Z g and gg →Zγ. Journal of High Energy Physics, 2013(4):1-26.

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.

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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2013
Deposited On:12 Sep 2013 13:28
Last Modified:16 Feb 2018 18:00
Publisher:Springer
ISSN:1029-8479
Additional Information:The final publication is available at link.springer.com
OA Status:Gold
Publisher DOI:https://doi.org/10.1007/JHEP04(2013)101
Other Identification Number:ArXiv ePrint: 1302.2630

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