Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at √s=13 TeV with the ATLAS detector

Abraham, N L, Allbrooke, B, Asquith, L, Cerri, A, Safarzadeh Samani, B, DeSanto, A, Salvatore, F, Shaw, K, Stevenson, T, Suruliz, K, Sutton, M, Vivarelli, I, The ATLAS Collaboration, . and others, (2019) Observation of electroweak W±Z boson pair production in association with two jets in pp collisions at √s=13 TeV with the ATLAS detector. Physics Letters B, 793. pp. 469-492. ISSN 0370-2693

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Abstract

An observation of electroweak W±Z production in association with two jets in proton–proton collisions is presented. The data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of √s=13TeVare used, corresponding to an integrated luminosity of 36.1fb−1. Events containing three identified leptons, either electrons or muons, and two jets are selected. The electroweak production of W±Z bosons in association with two jets is measured with an observed significance of 5.3standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σWZjj−EW= 0.57 +0.14−0.13 (stat.) +0.07−0.06 (syst.) fb. Total and differential fiducial cross-sections of the sum of W±Zjj electroweak and strong productions for several kinematic observables are also measured.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Amelia Redman
Date Deposited: 28 Aug 2019 15:32
Last Modified: 29 Aug 2019 11:15
URI: http://sro.sussex.ac.uk/id/eprint/85627

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