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

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.

• 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.
• 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
• Links: http://dx.doi.org/10.1140/epjc/s10052-019-7199-0
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6044