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154 Result(s)
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Open AccessThe ATLAS Inner Detector commissioning and calibration
The ATLAS Inner Detector is a composite tracking system consisting of silicon pixels, silicon strips and straw tubes in a 2 T magnetic field. Its installation was completed in August 2008 and the detector took...
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Open AccessMeasurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector
Jet cross sections have been measured for the first time in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector. The measurement uses an integrated luminosity of 17 nb−1 recorded...
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Open AccessMeasurement of the inclusive and dijet cross-sections of b-jets in pp collisions at \(\sqrt{s}=7\mbox{~TeV}\) with the ATLAS detector
The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton–proton collisions at a centre-of-mass energy of
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Open AccessElectron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data
Detailed measurements of the electron performance of the ATLAS detector at the LHC are reported, using decays of the Z, W and J/ψ particles. Data collected in 2010 at
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Open AccessSearch for anomaly-mediated supersymmetry breaking with the ATLAS detector based on a disappearing-track signature in pp collisions at \(\sqrt{s} = 7~\mathrm{TeV}\)
In models of anomaly-mediated supersymmetry breaking (AMSB), the lightest chargino is predicted to have a lifetime long enough to be detected in collider experiments. This letter explores AMSB scenarios in pp col...
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Open AccessMeasurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at \(\sqrt{s} = 7\ \mbox{TeV}\) with the ATLAS experiment
This paper describes an analysis of the angular distribution of W→eν and W→μν decays, using data from pp collisions at $\sqrt{s} = 7\ \mbox{Te...
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Open AccessCentrality dependence of dihadron correlations and azimuthal anisotropy harmonics in PbPb collisions at \(\sqrt{s_{NN}}= 2.76\ \mbox{TeV}\)
Measurements from the CMS experiment at the LHC of dihadron correlations for charged particles produced in PbPb collisions at a nucleon–nucleon centre-of-mass energy of 2.76 TeV are presented. The results are ...
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Open AccessSearch for lepton flavour violation in the eμ continuum with the ATLAS detector in \(\sqrt{s} = 7~\mbox{TeV}\) pp collisions at the LHC
This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark ( \(\tilde{t}\) ) in the e ± μ ∓ ...
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Open AccessSearch for top and bottom squarks from gluino pair production in final states with missing transverse energy and at least three b-jets with the ATLAS detector
This letter reports the results of a search for top and bottom squarks from gluino pair production in 4.7 fb−1 of pp collisions at $\sqrt{s}=7...
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Open AccessRatios of dijet production cross sections as a function of the absolute difference in rapidity between jets in proton–proton collisions at \(\sqrt{s} = 7\ \mathrm{TeV}\)
A study of dijet production in proton–proton collisions was performed at \(\sqrt{s}=7\mbox{~TeV}\) for jets with p T>35 GeV and |
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Open AccessMeasurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at \(\sqrt{\mathbf{s}}=7\ \mathrm{TeV}\)
A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadron...
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Open AccessSearch for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 7 TeV proton-proton collision data with the ATLAS detector
A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, and at least one hadronically decaying τ lepton, with zero or one additional light lepton (e/μ), has been performed using ...
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Open AccessSearch for light scalar top-quark pair production in final states with two leptons with the ATLAS detector in \(\sqrt{s}=7\ \mathrm{TeV}\) proton–proton collisions
A search is presented for the pair production of light scalar top quarks in \(\sqrt{s}=7~\mathrm{TeV}\) proton–proton collisions ...
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Open AccessJet energy measurement with the ATLAS detector in proton-proton collisions at \(\sqrt{\mathrm{s}}=7\ \mathrm{TeV}\)
The jet energy scale and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of
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Open AccessJet energy resolution in proton-proton collisions at \(\sqrt{\mathrm{s}}=7\mbox{ TeV}\) recorded in 2010 with the ATLAS detector
The measurement of the jet energy resolution is presented using data recorded with the ATLAS detector in proton-proton collisions at $\sqrt{s}...
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Open AccessMeasurement of the \(t\bar{t}\) production cross section in the tau + jets channel using the ATLAS detector
A measurement of the top quark pair production cross section in the final state with a hadronically decaying tau lepton and jets is presented. The analysis is based on proton–proton collision data recorded by ...
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Open AccessSingle hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC
The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadron...
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Open AccessMeasurement of differential top-quark-pair production cross sections in pp collisions at \(\sqrt{s} = 7\ \mathrm{TeV}\)
Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeVat the LHC with the CMS detector using data recorded in 2011 corresponding to a...
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Open AccessMulti-channel search for squarks and gluinos in \(\sqrt{s}=7\mbox{ TeV}\) pp collisions with the ATLAS detector at the LHC
A search for supersymmetric particles in final states with zero, one, and two leptons, with and without jets identified as originating from b-quarks, in 4.7 fb−1 of
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Open AccessMeasurement of the \(\mathrm{t}\bar{\mathrm{t}}\) production cross section in the τ+jets channel in pp collisions at \(\sqrt{s}=7\ \mbox{TeV}\)
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet ide...