SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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CERN-LHC. Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the Large Hadron Collider are reported.
CERN-LHC, ATLAS. Measurements of the fiducial and total cross sections and ratios for W+/-, Z production using the electron and muon final states in proton-proton collisions at a centre-of-mass energy of 13 TeV with 81 pb^-1 of data collected in 2015. Where there are two systematic uncertainties, the first is experimental (omitting luminosity) and the second uncertainty is that of luminosity.
CERN-LHC. Measurements of distributions of charged particles with transverse momentum greater than 100 MeV and absolute pseudorapidity less than 2.5 produced in proton--proton collisions at the LHC with a centre-of-mass energy of 13 TeV are presented. The charged-particle multiplicity, its dependence on transverse momentum and pseudorapidity and the dependence of the mean transverse momentum on multiplicity are measured in events containing at least two charged particles satisfying the above kinematic criteria.
CERN-LHC. Event-shape observables measured using charged particles in inclusive Z-Boson events are presented, using the electron and muon decay modes of the Z-bosons.
CERN-LHC. The results of a search for the stop, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, jets, and missing transverse momentum are reported.
CERN-LHC. A search for squarks and gluinos in final states containing hadronic jets, missing transverse momentum but no electrons or muons is presented.
CERN-LHC. Measurement of the inelastic proton-proton cross section at a centre-of-mass energy of 13 TeV.
CERN-LHC. Measurement of the dijet production cross section for jets containing a b-hadron (b-jets) in proton proton collisions at a centre-of-mass energy of 7 TeV, with 4.2 fb^-1 of data collected by the ATLAS detector in 2011. The cross section is measured for events with two identified b-jets with a transverse momentum pT > 20 GeV and a minimum separation in the eta-phi plane of Delta R = 0.4. At least one of the jets in the event is required to have pT > 270 GeV. The cross section is measured differentially as a function of the dijet invariant mass, dijet transverse momentum, boost of the dijet system, and of the rapidity difference, azimuthal angle and angular distance between the b-jets.
CERN-LHC, ATLAS. Measurements of the fiducial and total cross sections for Z production using the electron and muon final states in proton-proton collisions at a centre-of-mass energy of 13 TeV with 3.2 fb^-1 of data collected in 2015. Measurements of single and double fiducial and total cross-section ratios for ttbar and Z production at 13, 8, and 7TeV.
CERN-LHC. Measurements on the triboson W+-W+-W-+ production cross-section using two decay channels fully-leptonic W+-W+-W-+ -> l+-nu l+-nu l-+nu and semi-leptonic W+-W+-W-+ -> l+-nu l+-nu jj (with l=e,mu) in proton-proton collision data corresponding to an integrated luminosity of 20.3 fb-1 at a centre of-mass energy of 8 TeV with the ATLAS detector at the Large Hadron Collider. Limits are also sets on WWWW anomalous quartic gauge couplings.
CERN-LHC. Measurements of the cross section for ZZ production using the 4l and 2l2nu decay channels in proton-proton collisions at a centre-of-mass energy of 8 TeV with 20.3 fb^-1 of data collected in 2012. The final states used are 4 electrons, 4 muons, 2 electrons and 2 muons, 2 electrons and missing transverse momentum, and 2 muons and missing transverse momentum (MET).
CERN-LHC. Measurement of the inclusive isolated prompt photon cross section in pp collisions at 8 TeV with the ATLAS detector.
CERN-LHC. Measurement of the angular coefficients of the Z-boson in the Collins-Soper rest frame using dielectron and dimuon pairs in proton-proton collisions at a centre-of-mass energy of 8 TeV with 20.3 fb^-1 of data collected in 2012. The measurement is performed in a narrow window of the Z-mass pole between 80-100 GeV, in fine bins of Z-boson momenta, and both integrated in rapidity as well as in coarse rapidity bins. The measurements are performed in the full phase space of the lepton kinematics, where the leptons are defined at Born-level.
CERN-LHC. A search for physics beyond the Standard Model, in final states with at least one high transverse momentum charged lepton (electron or muon) and two additional high transverse momentum leptons or jets, is performed using 3.2 fb^-1 of proton--proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2015 at sqrt(s) = 13 TeV. The upper end of the distribution of the scalar sum of the transverse momenta of leptons and jets (sumPT) is sensitive to the production of high-mass objects.
CERN-LHC. The results of a search for vector-like top quarks using events with exactly one lepton, at least four jets, and large missing transverse momentum are reported.
CERN-LHC. Measurement of the cross-section for electroweak production of dijets in association with a Z boson in pp collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector. The measurement was made using the 3.2 fb^-1 of data collected in 2015.
CERN-LHC. Measurements of transverse energy-energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented.
CERN-LHC. Search for a new heavy gauge-boson resonance decaying into a lepton and missing transverse momentum in 36/fb of pp collisions at sqrt{s} = 13 TeV with the ATLAS experiment