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The transverse momentum spectrum of weak gauge bosons at N³LL + NNLO.

Bizoń, Wojciech and Gehrmann-De Ridder, Aude and Gehrmann, Thomas and Glover, Nigel and Huss, Alexander and Monni, Pier Francesco and Re, Emanuele and Rottoli, Luca and Walker, Duncan M. (2019) 'The transverse momentum spectrum of weak gauge bosons at N³LL + NNLO.', The European physical journal C., 79 (10). p. 868.

Abstract

We present accurate QCD predictions for the transverse momentum ( p⊥ ) spectrum of electroweak gauge bosons at the LHC for 13 TeV collisions, based on a consistent combination of a NNLO calculation at large p⊥ and N³ LL resummation in the small p⊥ limit. The inclusion of higher order corrections leads to substantial changes in the shape of the differential distributions, and the residual perturbative uncertainties are reduced to the few percent level across the whole transverse momentum spectrum. We examine the ratio of p⊥ distributions in charged- and neutral-current Drell–Yan production, and study different prescriptions for the estimate of perturbative uncertainties that rely on different degrees of correlation between these processes. We observe an excellent stability of the ratios with respect to the perturbative order, indicating a strong correlation between the corresponding QCD corrections.

Item Type:Article
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Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1140/epjc/s10052-019-7324-0
Publisher statement:This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecomm ons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3.
Date accepted:20 September 2019
Date deposited:07 November 2019
Date of first online publication:22 October 2019
Date first made open access:07 November 2019

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