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


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

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 N3LL 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.

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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
Scopus Subject Areas:Physical Sciences > Engineering (miscellaneous)
Physical Sciences > Physics and Astronomy (miscellaneous)
Uncontrolled Keywords:Physics and Astronomy (miscellaneous), Engineering (miscellaneous)
Language:English
Date:1 October 2019
Deposited On:10 Dec 2019 13:30
Last Modified:22 Apr 2020 21:34
Publisher:Springer
ISSN:1434-6044
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1140/epjc/s10052-019-7324-0
Project Information:
  • : FunderFP7
  • : Grant ID340983
  • : Project TitleMCATNNLO - High Precision Simulation of particle collisions at the LHC
  • : FunderH2020
  • : Grant ID714788
  • : Project TitleREINVENT - REsummation-Improved moNtecarlo eVEnt geNeraTor
  • : FunderFP7
  • : Grant ID614577
  • : Project TitleHICCUP - High Impact Cross-section Calculations for Unprecedented Precision
  • : FunderH2020
  • : Grant ID702610
  • : Project TitleResummation4PS - Advances in higher-order resummation and Parton Shower

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