Observation of electroweak W(+/-)Z boson pair production in association with two jets in pp collisions at root s=13 TeV with the ATLAS detector
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Tarih
2019-06-10
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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 root s = 13 TeV are used, corresponding to an integrated luminosity of 36.1 fb(-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 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be sigma(WZjj-EW) = 0.57(-0.13)(+0.14) (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. (C) 2019 The Author(s). Published by Elsevier B.V.
Açıklama
Anahtar Kelimeler
PROTON-PROTON COLLISIONS, CROSS-SECTION, CONSTRAINTS, COUPLINGS
Kaynak
PHYSICS LETTERS B
WoS Q Değeri
Q1
