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$W^{\pm}Z$ production at hadron colliders in NNLO QCD


Grazzini, Massimiliano; Kallweit, Stefan; Rathlev, Dirk; Wiesemann, Marius (2016). $W^{\pm}Z$ production at hadron colliders in NNLO QCD. Physics Letters B, 761:179-183.

Abstract

We report on the first computation of the next-to-next-to-leading order (NNLO) QCD corrections to $W^{\pm}Z$ production in proton collisions. We consider both the inclusive production of on-shell $W^{\pm}Z$ pairs at LHC energies and the total $W^{\pm}Z$ rates including off-shell effects of the $W$ and $Z$ bosons. In the off-shell computation, the invariant mass of the lepton pairs from the $Z$ boson decay is required to be in a given mass window, and the results are compared with the corresponding measurements obtained by the ATLAS and CMS collaborations. The NNLO corrections range from 8% at $\sqrt{s}$=7 TeV to 11% at $\sqrt{s}$=14 TeV and significantly improve the agreement with the LHC data at $\sqrt{s}$=7 and 8 TeV.

Abstract

We report on the first computation of the next-to-next-to-leading order (NNLO) QCD corrections to $W^{\pm}Z$ production in proton collisions. We consider both the inclusive production of on-shell $W^{\pm}Z$ pairs at LHC energies and the total $W^{\pm}Z$ rates including off-shell effects of the $W$ and $Z$ bosons. In the off-shell computation, the invariant mass of the lepton pairs from the $Z$ boson decay is required to be in a given mass window, and the results are compared with the corresponding measurements obtained by the ATLAS and CMS collaborations. The NNLO corrections range from 8% at $\sqrt{s}$=7 TeV to 11% at $\sqrt{s}$=14 TeV and significantly improve the agreement with the LHC data at $\sqrt{s}$=7 and 8 TeV.

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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:2016
Deposited On:30 Dec 2016 09:06
Last Modified:30 Dec 2016 10:06
Publisher:Elsevier
ISSN:0370-2693
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2016.08.017
Other Identification Number:arXiv:1604.08576

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Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)

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