In:
The European Physical Journal C, Springer Science and Business Media LLC, Vol. 79, No. 9 ( 2019-09)
Abstract:
This paper presents measurements of the $$W^+ \rightarrow \mu ^+\nu $$ W + → μ + ν and $$W^- \rightarrow \mu ^-\nu $$ 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 $$\text {TeV}$$ TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of $$20.2~\text{ fb }^{-1}$$ 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.
Type of Medium:
Online Resource
ISSN:
1434-6044
,
1434-6052
DOI:
10.1140/epjc/s10052-019-7199-0
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2019
detail.hit.zdb_id:
1397769-6
detail.hit.zdb_id:
1459069-4