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

The ATLAS collaboration, Виктор Сергеевич Бобровников, Георгий Александрович Богданчиков, Алексей Рафаилович Бузыкаев, Алексей Георгиевич Харламов, Алексей Леонидович Масленников, Сергей Владимирович Пелеганчук, Алексей Александрович Талышев, Юрий Анатольевич Тихонов

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

32 Цитирования (Scopus)

Аннотация

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=13 TeV are 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 5.3 standard deviations. A fiducial cross-section for electroweak production including interference effects and for a single leptonic decay mode is measured to be σ WZjj−EW =0.57 −0.13 +0.14 (stat.) −0.06 +0.07 (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.

Язык оригиналаанглийский
Страницы (с-по)469-492
Число страниц24
ЖурналPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Том793
DOI
СостояниеОпубликовано - 10 июн 2019

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