Browsing Department of Physics and Technology by Title
Now showing items 1730-1749 of 2124
-
Search for new phenomena in final states with two leptons and one or no b-tagged jets at √s=13 TeV using the ATLAS detector
(Journal article; Peer reviewed, 2021)A search for new phenomena is presented in final states with two leptons and one or no b-tagged jets. The event selection requires the two leptons to have opposite charge, the same flavor (electrons or muons), and a large ... -
Search for new phenomena in high-mass final states with a photon and a jet from pp collisions at s√ = 13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-02-03)A search is performed for new phenomena in events having a photon with high transverse momentum and a jet collected in 36.7 fb−1 of proton–proton collisions at a centre-of-mass energy of 𝑠√ = 13 TeV recorded with the ATLAS ... -
Search for new phenomena in pp collisions in final states with tau leptons, b-jets, and missing transverse momentum with the ATLAS detector
(Journal article; Peer reviewed, 2021)A search for new phenomena in final states with hadronically decaying tau leptons, b-jets, and missing transverse momentum is presented. The analyzed dataset comprises pp collision data at a center-of-mass energy of √s=13 TeV ... -
Search for new phenomena in three- or four-lepton events in pp collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2022)A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four charged leptons (3ℓ and 4ℓ, ℓ=e,μ) is presented. The analysis aims to be sensitive to a wide range of potential ... -
Search for new phenomena using the invariant mass distribution of same-flavour opposite-sign dilepton pairs in events with missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector
(Peer reviewed; Journal article, 2018-08)Supersymmetry (SUSY) [1, 2, 3, 4, 5, 6] is an extension to the Standard Model (SM) that introduces partner particles (called sparticles), which differ by half a unit of spin from their SM counterparts. For models with ... -
Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)A search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. Signal regions are designed to search for two-, three-, ... -
Search for new resonances decaying to a \(W\) or \(Z\) boson and a Higgs boson in the \(\ell^+ \ell^- b\bar b\), \(\ell \nu b\bar b\), and \(\nu\bar{\nu} b\bar b\) channels with \(pp\) collisions at \(\sqrt s = 13\) TeV with the ATLAS detector
(Peer reviewed; Journal article, 2017-01)A search is presented for new resonances decaying to a \(W\) or \(Z\) boson and a Higgs boson in the \(\ell^+ \ell^- b\bar b\), \(\ell\nu b\bar b\), and \(\nu\bar{\nu} b\bar b\) channels in \(pp\) collisions at \(\sqrt s ... -
Search for new resonances in \(W\gamma\) and \(Z\gamma\) Final States in \(pp\) Collisions at \(\sqrt{s}=8\,\mathrm{TeV}\) with the ATLAS Detector
(Peer reviewed; Journal article, 2014-11-10)This letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, \(V\gamma\), with \(V= W(\rightarrow \ell \nu)\) or \(Z(\rightarrow ... -
Search for new resonances in mass distributions of jet pairs using 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2020)A search for new resonances decaying into a pair of jets is reported using the dataset of proton-proton collisions recorded at s√ = 13 TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, ... -
Search for non-pointing and delayed photons in the diphoton and missing transverse momentum final state in 8 TeV \(pp\) collisions at the LHC using the ATLAS detector
(Peer reviewed; Journal article, 2014-12-10)A search has been performed, using the full 20.3 fb\(^{-1}\) data sample of 8 TeV proton--proton collisions collected in 2012 with the ATLAS detector at the LHC, for photons originating from a displaced vertex due to the ... -
Search for non-resonant Higgs boson pair production in the bbℓνℓν final state with the ATLAS detector in pp collisions at √s=13 TeV
(Journal article; Peer reviewed, 2020)A search for non-resonant Higgs boson pair production, as predicted by the Standard Model, is presented, where one of the Higgs bosons decays via the H → bb channel and the other via one of the H → W W ∗/Z Z∗/ττ channels. ... -
Search for pair and single production of new heavy quarks that decay to a Z boson and a third-generation quark in pp collisions at √s=8 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2014-11-19)A search is presented for the production of new heavy quarks that decay to a Z boson and a third-generation Standard Model quark. In the case of a new charge +2/3 quark (T ), the decay targeted is T → Zt, while the decay ... -
Search for pair and single production of vectorlike quarks in final states with at least one Z boson decaying into a pair of electrons or muons in pp collision data collected with the ATLAS detector at √s=13 TeV
(Peer reviewed; Journal article, 2018-12-20)A search for vectorlike quarks is presented, which targets their decay into a Z boson and a thirdgeneration Standard Model quark. In the case of a vectorlike quark T (B) with charge þ2=3e (−1=3e), the decay searched for ... -
Search for Pair Production of Bottom-Squarks in Final States with Hadronically Decaying Tau-leptons, b-jets and missing transverse momentum with the ATLAS Detector at the Large Hadron Collider
(Doctoral thesis, 2020-10-16)In this thesis a search for beyond the Standard Model physics, in particular for bottom-squark pairs in events with missing transverse momentum, b-tagged jets and hadronically decaying tau leptons is documented. The dataset ... -
Search for pair production of Higgs bosons in the bb¯¯bb¯¯ final state using proton-proton collisions at √s=13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019-01-03)A search for Higgs boson pair production in the bb¯¯bb¯¯ final state is carried out with up to 36.1 fb^−1 of LHC proton-proton collision data collected at √s=13 TeV with the ATLAS detector in 2015 and 2016. Three benchmark ... -
Search for pair production of Higgsinos in final states with at least three b-tagged jets in √s=13 TeV pp collisions using the ATLAS detector
(Peer reviewed; Journal article, 2018-11)A search for pair production of the supersymmetric partners of the Higgs boson (higgsinos ˜H) in gauge-mediated scenarios is reported. Each higgsino is assumed to decay to a Higgs boson and a gravitino. Two ... -
Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton–proton collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. This is the first leptoquark search using ATLAS data to investigate top-philic cross-generational ... -
Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in pp collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)A search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton is presented. The search is based on a dataset of pp collisions at √s = 13 TeV recorded with the ATLAS detector ... -
Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple b-jets with the ATLAS detector
(Peer reviewed; Journal article, 2018-07-12)A search for pair production of up-type vector-like quarks (T ) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a Z boson is presented. The same analysis is also used to search ... -
Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at \(\sqrt{s}\) = 7 TeV
(Peer reviewed; Journal article, 2013-01)A search for pair-produced massive coloured scalar particles decaying to a four-jet final state is performed by the ATLAS experiment at the LHC in proton-proton collisions at \(\sqrt{s}\) = 7 TeV. The analysed data sample ...