The production of a top quark in association with a $Z$ boson is measured in the trilepton channel. The proton–proton collision data collected by the ATLAS experiment from 2015 to 2018 at a centre-of-mass energy of 13 TeV are used, corresponding to an integrated luminosity of 139 fb$^{-1}$. Events containing three isolated charged leptons (electrons and muons) and two or three jets, one of which is identified as containing a b-hadron, are selected. The main backgrounds are from $t\bar{t}Z$, diboson, $t\bar{t}$ and $Z$ + jets production. A neural network is used to improve the background rejection and extract the signal. The measured cross-section for $tl^{+}l^{-}q$ production, including non-resonant dilepton pairs with $m_{ll}$ > 30 GeV, is...
Indexación: ScopusSingle top-quark production in association with a Z boson, where the Z boson decay...
The production of a top quark in association with a Z boson is investigated. The proton\u2013proton ...
The production of a top quark in association with a Z boson is investigated. The proton–proton colli...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Abstract: Single top-quark production in association with a Z boson, where the Z boson decays to a p...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
The production of a top quark in association with a $Z$ boson is studied in the trilepton channel. T...
Indexación: ScopusSingle top-quark production in association with a Z boson, where the Z boson decay...
The production of a top quark in association with a Z boson is investigated. The proton\u2013proton ...
The production of a top quark in association with a Z boson is investigated. The proton–proton colli...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
Abstract: Single top-quark production in association with a Z boson, where the Z boson decays to a p...
Single top-quark production in association with a Z boson, where the Z boson decays to a pair of cha...
The production of a top quark in association with a $Z$ boson is studied in the trilepton channel. T...
Indexación: ScopusSingle top-quark production in association with a Z boson, where the Z boson decay...
The production of a top quark in association with a Z boson is investigated. The proton\u2013proton ...
The production of a top quark in association with a Z boson is investigated. The proton–proton colli...