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Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings MEASUREMENTS of W±Z PRODUCTION CROSS ⋯ G. AAD et al

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
GIORDANI, Mario
2016
  • journal article

Periodico
PHYSICAL REVIEW D.
Abstract
This paper presents measurements of W±Z production in pp collisions at a center-of-mass energy of 8 TeV. The gauge bosons are reconstructed using their leptonic decay modes into electrons and muons. The data were collected in 2012 by the ATLAS experiment at the Large Hadron Collider and correspond to an integrated luminosity of 20.3 fb-1. The measured inclusive cross section in the detector fiducial region is σW±Z→ ′ν=35.1±0.9(stat)±0.8(sys)±0.8(lumi) fb, for one leptonic decay channel. In comparison, the next-to-leading-order Standard Model expectation is 30.0±2.1 fb. Cross sections for W+Z and W-Z production and their ratio are presented as well as differential cross sections for several kinematic observables. Limits on anomalous triple gauge boson couplings are derived from the transverse mass spectrum of the W±Z system. From the analysis of events with a W and a Z boson associated with two or more forward jets an upper limit at 95% confidence level on the W±Z scattering cross section of 0.63 fb, for each leptonic decay channel, is established, while the Standard Model prediction at next-to-leading order is 0.13±0.01 fb. Limits on anomalous quartic gauge boson couplings are also extracted. © 2016 CERN.
DOI
10.1103/PhysRevD.93.092004
WOS
WOS:000376005200001
Archivio
http://hdl.handle.net/11390/1097281
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84971421903
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.93.092004
Diritti
metadata only access
Soggetti
  • PROTON-PROTON COLLISI...

  • HADRON COLLIDERS

  • WZ PRODUCTION

  • P(P)OVER-BAR COLLISIO...

  • ZZ PRODUCTION

  • HIGGS BOSONS

  • NNLO QCD

  • LHC

  • RECONSTRUCTION

  • ELECTRON

Scopus© citazioni
91
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
82
Data di acquisizione
Mar 27, 2024
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