317 Result(s)
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Open AccessMeasurement of the CP properties of Higgs boson interactions with \(\tau \) -leptons with the ATLAS detector
A study of the charge conjugation and parity ( \(\textit{CP}\) CP ) propertie...
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Open AccessSearch for supersymmetry in final states with missing transverse momentum and three or more b-jets in 139 fb \(^{-1}\) of proton–proton collisions at \(\sqrt{s} = 13\) TeV with the ATLAS detector
A search for supersymmetry involving the pair production of gluinos decaying via off-shell third-generation squarks into the lightest neutralino ...
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Open AccessMeasurement of \(Z\gamma \gamma \) production in pp collisions at \(\sqrt{s}= 13\) TeV with the ATLAS detector
Cross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity o...
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Open AccessSearch for Higgs boson pair production in association with a vector boson in pp collisions at \(\sqrt{s}=13\,\text {TeV}\) with the ATLAS detector
This paper reports a search for Higgs boson pair (hh) production in association with a vector boson ( \(W\; {\text {o}r}\; Z\)
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Open AccessMeasurements of observables sensitive to colour reconnection in \(t{\bar{t}}\) events with the ATLAS detector at \(\sqrt{s} =\) 13 TeV
A measurement of observables sensitive to effects of colour reconnection in top-quark pair-production events is presented using 139 $$\hbox {f...
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Open AccessSearches for new phenomena in events with two leptons, jets, and missing transverse momentum in 139 fb \(^{-1}\) of \(\varvec{\sqrt{s}}=13\) TeV \(\varvec{pp}\) collisions with the ATLAS detector
Searches for new phenomena inspired by supersymmetry in final states containing an \(e^+e^-\) ...
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Open AccessConstraints on spin-0 dark matter mediators and invisible Higgs decays using ATLAS 13 TeV pp collision data with two top quarks and missing transverse momentum in the final state
This paper presents a statistical combination of searches targeting final states with two top quarks and invisible particles, characterised by the presence of zero, one or two leptons, at least one jet origina...
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Open AccessObservation of four-top-quark production in the multilepton final state with the ATLAS detector
This paper presents the observation of four-top-quark ( \(t\bar{t}t\bar{t}\) t ...
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Open AccessMeasurement of the total cross section and \(\rho \) -parameter from elastic scattering in pp collisions at \(\sqrt{s}=13\) TeV with the ATLAS detector
In a special run of the LHC with \(\beta ^{\star } = 2.5\) β ...
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Open AccessMeasurement of the nuclear modification factor of b-jets in 5.02 TeV Pb+Pb collisions with the ATLAS detector
This paper presents a measurement of b-jet production in Pb+Pb and pp collisions at \(\sqrt{s_{_\text {NN}}}=5.02\) ...
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Open AccessSearch for type-III seesaw heavy leptons in leptonic final states in pp collisions at \(\sqrt{s} = 13~\text {TeV}\) with the ATLAS detector
A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to ...
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Open AccessDirect constraint on the Higgs–charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector
A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses proton–proton collisions to target the production of a Higgs boson in association with a leptonically decaying W o...
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Open AccessConstraints on Higgs boson properties using \(WW^{*}(\rightarrow e\nu \mu \nu )jj\) production in \(36.1\,\mathrm{fb}^{-1}\) of \(\sqrt{s}=13\) TeV pp collisions with the ATLAS detector
This article presents the results of two studies of Higgs boson properties using the \(WW^*(\rightarrow e\nu \mu \nu )jj\) ...
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Open AccessTwo-particle Bose–Einstein correlations in \({ pp }\) collisions at \(\mathbf {\sqrt{s} = 13}\) TeV measured with the ATLAS detector at the LHC
This paper presents studies of Bose–Einstein correlations (BEC) in proton–proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were...
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Open AccessSearch for long-lived charginos based on a disappearing-track signature using 136 fb \(^{-1}\) of pp collisions at \(\sqrt{s}\) = 13 TeV with the ATLAS detector
A search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass ...
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Open AccessDetermination of the parton distribution functions of the proton using diverse ATLAS data from pp collisions at \(\sqrt{s} = 7\) , 8 and 13 TeV
This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in pp
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Open AccessMeasurement of the energy asymmetry in \(t{\bar{t}}j\) production at \(13\,\) TeV with the ATLAS experiment and interpretation in the SMEFT framework
A measurement of the energy asymmetry in jet-associated top-quark pair production is presented using \(139\,{\mathrm {fb}}^{-1}\) ...
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Open AccessSearch for flavour-changing neutral-current interactions of a top quark and a gluon in pp collisions at \(\sqrt{s}=13\) TeV with the ATLAS detector
A search is presented for the production of a single top quark via left-handed flavour-changing neutral-current (FCNC) interactions of a top quark, a gluon and an up or charm quark. Two production processes ar...
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Open AccessMeasurement of the energy response of the ATLAS calorimeter to charged pions from \(W^{\pm }\rightarrow \tau ^{\pm }(\rightarrow \pi ^{\pm }\nu _{\tau })\nu _{\tau }\) events in Run 2 data
The energy response of the ATLAS calorimeter is measured for single charged pions with transverse momentum in the range \(10<p_\text {T}<300\)
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Open AccessThe ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2
The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and...