431 Result(s)
-
Article
Open AccessMeasurement of t-channel production of single top quarks and antiquarks in pp collisions at 13 TeV using the full ATLAS Run 2 data sample
The production of single top quarks and top antiquarks via the t-channel exchange of a virtual W boson is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV at the LHC using 140 fb−1 of ATL...
-
Article
Open AccessSearch for electroweak production of supersymmetric particles in final states with two τ-leptons in \( \sqrt{s} \) = 13 TeV pp collisions with the ATLAS detector
Three searches for the direct production of τ-sleptons or charginos and neutralinos in final states with at least two hadronically decaying τ-leptons are presented. For chargino and neutralino production, decays ...
-
Article
Open AccessMeasurement of the total and differential cross-sections of \( t\overline{t}W \) production in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
Measurements of inclusive and differential production cross-sections of a top-quark-top-antiquark pair in association with a W boson ( ...
-
Article
Open AccessATLAS Run 2 searches for electroweak production of supersymmetric particles interpreted within the pMSSM
A summary of the constraints from searches performed by the ATLAS collaboration for the electroweak production of charginos and neutralinos is presented. Results from eight separate ATLAS searches are consider...
-
Article
Open AccessA search for R-parity-violating supersymmetry in final states containing many jets in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for R-parity-violating supersymmetry in final states with high jet multiplicity is presented. The search uses 140 fb−1 of proton-proton collision data at
-
Article
Open AccessSearch for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb−1 of pp collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and m...
-
Article
Open AccessSearch for a CP-odd Higgs boson decaying into a heavy CP-even Higgs boson and a Z boson in the \( {\ell}^{+}{\ell}^{-}t\overline{t} \) and \( \nu \overline{\nu}b\overline{b} \) final states using 140 fb−1 of data collected with the ATLAS detector
A search for a heavy CP-odd Higgs boson, A, decaying into a Z boson and a heavy CP-even Higgs boson, H, is presented. It uses the full LHC Run 2 dataset of pp collisions at
-
Article
Open AccessMeasurement of the production cross-section of \(J/\psi \) and \(\psi (2{\textrm{S}})\) mesons in pp collisions at \(\sqrt{s} = 13\) TeV with the ATLAS detector
Measurements of the differential production cross-sections of prompt and non-prompt \(J/\psi \) ...
-
Article
Open AccessSearch for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector
A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. The search targets a final state with exactly two leptons with same-sign electric charge or at least three l...
-
Article
Open AccessMeasurement of the Z boson production cross-section in pp collisions at \( \sqrt{s} \) = 5.02 TeV
The first measurement of the Z boson production cross-section at centre-of-mass energy s ...
-
Article
Open AccessSearch for non-resonant Higgs boson pair production in the \( 2b+2\ell +{E}_{\textrm{T}}^{\textrm{miss}} \) final state in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for non-resonant Higgs boson pair (HH) production is presented, in which one of the Higgs bosons decays to a b-quark pair ( ...
-
Article
Open AccessMeasurement of the \(H \rightarrow \gamma \gamma \) and \(H \rightarrow ZZ^* \rightarrow 4 \ell \) cross-sections in pp collisions at \(\sqrt{s}=13.6\) TeV with the ATLAS detector
The inclusive Higgs boson production cross-section is measured in the di-photon and the \(ZZ^* \rightarrow 4 \ell \) ...
-
Article
Open AccessStudies of new Higgs boson interactions through nonresonant HH production in the \( b\overline{b}\gamma \gamma \) final state in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for nonresonant Higgs boson pair production in the b b
-
Article
Open AccessSearch for direct production of electroweakinos in final states with one lepton, jets and missing transverse momentum in pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
Searches for electroweak production of wino-like chargino pairs, χ ...
-
Article
Open AccessSearch for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus b-jets final states in pp collisions at 13 TeV with the ATLAS detector
A search for new heavy scalars with flavour-violating decays in final states with multiple leptons and b-tagged jets is presented. The results are interpreted in terms of a general two-Higgs-doublet model involvi...
-
Article
Open AccessSearch for vector-boson resonances decaying into a top quark and a bottom quark using pp collisions at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for a new massive charged gauge boson, W′, is performed with the ATLAS detector at the LHC. The dataset used in this analysis was collected from proton-proton collisions at a centre-of-mass energy of ...
-
Article
Open AccessPerformance of the reconstruction of large impact parameter tracks in the inner detector of ATLAS
Searches for long-lived particles (LLPs) are among the most promising avenues for discovering physics beyond the Standard Model at the Large Hadron Collider (LHC). However, displaced signatures are notoriously...
-
Article
Open AccessSearch for pair production of third-generation leptoquarks decaying into a bottom quark and a \(\tau \) -lepton with the ATLAS detector
A search for pair-produced scalar or vector leptoquarks decaying into a b-quark and a \(\tau \) τ ...
-
Article
Open AccessSearch for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in pp collision data at \( \sqrt{s} \) = 13 TeV with the ATLAS detector
A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons (e or μ) with the same electric charge, or three leptons. The analysis uses 1...
-
Article
Open AccessSearch for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector
A search for a new heavy scalar particle X decaying into a Standard Model (SM) Higgs boson and a new singlet scalar particle S is presented. The search uses a proton-proton (pp) collision data sample with an inte...
