Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at s√=8 TeV with the ATLAS detector
Date
2019
Authors
Aad, G.
Abbott, B.
Abbott, D.C.
Abdinov, O.
Abed Abud, A.
Abeling, K.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Journal Title
Journal ISSN
Volume Title
Publisher
The European Physical Journal C
Abstract
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 20.2 fb −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.
Description
Keywords
Citation
Aad, G., Abbott, B., Abbott, D. C., Abdinov, O., Abed Abud, A., Abeling, K., … Zwalinski, L. (2019). Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at s√=8 TeV with the ATLAS detector. The European Physical Journal C, 79(5). https://doi.org/10.1140/epjc/s10052-019-7199-0