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

CollaborationWith : Adorni Braccesi Chiassi, Sofia / Akilli, Ece / Amrouche, Cherifa Sabrina / Benoit, Mathieu / Clark, Allan Geoffrey / Della Volpe, Domenico / Di Bello, Francesco Armando / Dubreuil, Arnaud / Ferrere, Didier / Gadatsch, Stefan / Golling, Tobias / Gonzalez Sevilla, Sergio / Iacobucci, Giuseppe / Iizawa, Tomoya / Jansky, Roland / Khoo, Teng Jian / Kiehn, Moritz / Lanfermann, Marie Christine / Lionti, Anthony Eric / Mermod, Philippe / Nindhito, Herjuno Rah / Paolozzi, Lorenzo / Poggi, Riccardo / Raine, Johnny / Salamani, Dalila / Schramm, Steven / Sfyrla, Anna / Sultan, D M S / Valente, Marco / Vicente Barreto Pinto, Mateus / Wu, Xin / Zaffaroni, Ettore
Published in The European Physical Journal. C, Particles and Fields. 2019, vol. 79, p. 1-25
Collection Open Access - SCOAP3
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 20.2-1. 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.
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ATLAS COLLABORATION. Measurement of the cross-section and charge asymmetry of W bosons produced in proton–proton collisions at √s = 8 TeV with the ATLAS detector. In: The European Physical Journal. C, Particles and Fields, 2019, vol. 79, p. 1-25. doi: 10.1140/epjc/s10052-019-7199-0 https://archive-ouverte.unige.ch/unige:128794

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Deposited on : 2020-01-14

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