Browsing Department of Physics and Technology by Title
Now showing items 1710-1729 of 2128
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Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton–proton collisions at √s=13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019-01-10)This Letter presents a search for new light resonances decaying to pairs of quarks and produced in association with a high-p_T photon or jet. The dataset consists of proton–proton collisions with an integrated luminosity ... -
Search for long-lived charginos based on a disappearing-track signature in pp collisions at s√=13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-06-05)This paper presents a search for direct electroweak gaugino or gluino pair production with a chargino nearly mass-degenerate with a stable neutralino. It is based on an integrated luminosity of 36.1 fb−1 of pp collisions ... -
Search for long-lived neutral particles decaying into lepton jets in proton-proton collisions at √s= 8TeV with the ATLAS detector
(Peer reviewed; Journal article, 2014-11)Several models of physics beyond the Standard Model predict neutral particles that decay into final states consisting of collimated jets of light leptons and hadrons (so-called “lepton jets”). These particles can also be ... -
Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter
(Peer reviewed; Journal article, 2019-06-09)This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying ... -
Search for long-lived neutral particles produced in pp collisions at √s=13 TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer
(Journal article; Peer reviewed, 2020-03-30)A search is presented for pair production of long-lived neutral particles using 33 fb−1 of √s=13 TeV proton–proton collision data, collected during 2016 by the ATLAS detector at the LHC. This search focuses on a topology ... -
Search for long-lived particles in final states with displaced dimuon vertices in pp collisions at √s = 13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019)A search is performed for a long-lived particle decaying into a final state that includes a pair of muons of opposite-sign electric charge, using proton-proton collision data collected at √ s = 13 TeV by the ATLAS ... -
Search for long-lived particles produced in pp collisions at √s=13 TeV that decay into displaced hadronic jets in the ATLAS muon spectrometer
(Peer reviewed; Journal article, 2019-03-15)A search for the decay of neutral, weakly interacting, long-lived particles using data collected by the ATLAS detector at the LHC is presented. The analysis in this paper uses 36.1 fb^−1 of proton-proton collision data at ... -
Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter in pp collisions at √s =13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2020-08-14)A search for long-lived particles decaying into hadrons and at least one muon is presented. The analysis selects events that pass a muon or missing-transverse-momentum trigger and contain a displaced muon track and a ... -
Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector
(Peer reviewed; Journal article, 2018-03-28)A search for long-lived, massive particles predicted by many theories beyond the Standard Model is presented. The search targets final states with large missing transverse momentum and at least one high-mass displaced ... -
Search for low-mass dijet resonances using trigger-level jets with the ATLAS detector in pp collisions at √s=13 TeV
(Peer reviewed; Journal article, 2018-08)Searches for dijet resonances with sub-TeV masses using the ATLAS detector at the Large Hadron Collider can be statistically limited by the bandwidth available to inclusive single-jet triggers, whose data-collection rates ... -
Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s=13 TeV with the ATLAS detector
(Peer reviewed; Journal article, 2019-08-10)A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb^−1 of LHC proton–proton collisions ... -
Search for low-scale gravity signatures in multi-jet final states with the ATLAS detector at \(\sqrt{s}\) = 8 TeV
(Peer reviewed; Journal article, 2015-07)We search for evidence of physics beyond the Standard Model in the production of final states with multiple high transverse momentum jets, using 20.3 \(fb^{-1}\) of proton-proton collision data recorded by the ATLAS detector ... -
Search for magnetic monopoles and stable high-electric-charge objects in 13 Tev proton-proton collisions with the ATLAS detector
(Journal article; Peer reviewed, 2020-01-23)A search for magnetic monopoles and high-electric-charge objects is presented using 34.4 fb−1 of 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015 and 2016. The considered signature is based ... -
Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at √s = 8 TeV
(Peer reviewed; Journal article, 2014-08-18)A search for an excess of events with multiple high transverse momentum objects including charged leptons and jets is presented, using 20.3 fb−1 of proton-proton collision data recorded by the ATLAS detector at the Large ... -
Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at √s= TeV with the ATLAS detector
(Peer reviewed; Journal article, 2014-11-12)A search for the neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is performed on data from proton-proton collisions at a centre-of-mass energy of 8TeV collected ... -
Search for new non-resonant phenomena in high-mass dilepton final states with the ATLAS detector
(Journal article; Peer reviewed, 2020-11-04)A search for new physics with non-resonant signals in dielectron and dimuon final states in the mass range above 2 TeV is presented. This is the first search for non-resonant signals in dilepton final states at the LHC to ... -
Search for new phenomena in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in \(\sqrt{s}=\) 13 \(pp\) collisions with the ATLAS detector
(Peer reviewed; Journal article, 2017-03)Two searches for new phenomena in final states containing a same-flavour opposite-lepton (electron or muon) pair, jets, and large missing transverse momentum are presented. These searches make use of proton--proton collision ... -
Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at √s =13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)Results of a search for new physics in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 139 fb−1 ... -
Search for new phenomena in events with same-charge leptons and b-jets in pp collisions at √s=13TeV with the ATLAS detector
(Peer reviewed; Journal article, 2018-12-07)A search for new phenomena in events with two same-charge leptons or three leptons and jets identified as originating from b-quarks in a data sample of 36.1 fb−1 of pp collisions at √ s = 13 TeV recorded by the ATLAS ... -
Search for new phenomena in events with two opposite-charge leptons, jets and missing transverse momentum in pp collisions at √s = 13 TeV with the ATLAS detector
(Journal article; Peer reviewed, 2021)The results of a search for direct pair production of top squarks and for dark matter in events with two opposite-charge leptons (electrons or muons), jets and missing transverse momentum are reported, using 139 fb−1 of ...