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Measurements of W+W-+ = 1 jet production cross-sections in pp collisions at sv = 13 TeV with the ATLAS detector

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posted on 2023-06-10, 01:38 authored by N L Abraham, Benedict AllbrookeBenedict Allbrooke, Marco AparoMarco Aparo, Lily AsquithLily Asquith, Alessandro Cerri, Antonella De SantoAntonella De Santo, Meirin Oan Evans, Mario Grandi, Samuel Jones, Daniel Christopher Kelsey, Daniela Maria Köck, Josh McFaydenJosh McFayden, Batool Safarzadeh Samani, Fabrizio SalvatoreFabrizio Salvatore, Kate ShawKate Shaw, Mario Spina, Thomas StevensonThomas Stevenson, Fabio Tresoldi, Fabrizio Trovato, Iacopo Vivarelli, E Winkels, Ioannis Xiotidis, ATLAS Collaboration, Others
Fiducial and differential cross-section measurements of W+W- production in association with at least one hadronic jet are presented. These measurements are sensitive to the properties of electroweak-boson self-interactions and provide a test of perturbative quantum chromodynamics and the electroweak theory. The analysis is performed using proton-proton collision data collected at sv = 13 TeV with the ATLAS experiment, corresponding to an integrated luminosity of 139 fb-1. Events are selected with exactly one oppositely charged electron-muon pair and at least one hadronic jet with a transverse momentum of pT > 30 GeV and a pseudorapidity of |?| < 4.5. After subtracting the background contributions and correcting for detector effects, the jet-inclusive W+W-+ = 1 jet fiducial cross-section and W+W-+ jets differential cross-sections with respect to several kinematic variables are measured. These measurements include leptonic quantities, such as the lepton transverse momenta and the transverse mass of the W+W- system, as well as jet-related observables such as the leading jet transverse momentum and the jet multiplicity. Limits on anomalous triple-gauge-boson couplings are obtained in a phase space where interference between the Standard Model amplitude and the anomalous amplitude is enhanced.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of High Energy Physics

ISSN

1126-6708

Publisher

Springer

Issue

6

Volume

2021

Page range

1-58

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2021-11-03

First Open Access (FOA) Date

2021-11-03

First Compliant Deposit (FCD) Date

2021-11-03

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