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Torsten ÅKESSON

Torsten Åkesson

Professor

Torsten ÅKESSON

Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at √s=8TeV with the ATLAS detector

Author

  • Aad G.
  • T. Åkesson
  • S. Bocchetta
  • L. Bryngemark
  • E. Corrigan
  • C. Doglioni
  • K. Gregersen
  • E. Hansen
  • V. Hedberg
  • G. Jarlskog
  • C. Kalderon
  • E. Kellermann
  • B. Konya
  • E. Lytken
  • K. Mankinen
  • C. Marcon
  • J. Mjörnmark
  • G. Mullier
  • R. Poettgen
  • T. Poulsen
  • E. Skorda
  • O. Smirnova
  • Zwalinski L.

Summary, in English

This paper presents measurements of the W+→ μ+ν and W-→ μ-ν cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton–proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2fb-1. The precision of the cross-section measurements varies between 0.8 and 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them. © 2019, CERN for the benefit of the ATLAS collaboration.

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration

Publishing year

2019-09-12

Language

English

Publication/Series

European Physical Journal C

Volume

79

Issue

9

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044