Correlated long-range mixed-harmonic fluctuations measured in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector

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Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC

The performance of identification algorithms (“taggers”) for hadronically decaying top quarks and W bosons in pp collisions at √s=13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented. A set of techniques based on jet shape observables are studied to determine a set of optimal cut-based taggers for use in physics analyses. The studies are extended to assess the utility of combinations of substructure observables as a multivariate tagger using boosted decision trees or deep neural networks in comparison with taggers based on two-variable combinations. In addition, for highly boosted top-quark tagging, a deep neural network based on jet constituent inputs as well as a re-optimisation of the shower deconstruction technique is presented. The performance of these taggers is studied in data collected during 2015 and 2016 corresponding to 36.1 fb −1 for the tt ¯ and γ+jet and 36.7 fb −1 −1 for the dijet event topologies

Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run 2 data collected in 2015 and 2016

The efficiency of the photon identification criteria in the ATLAS detector is measured using 36.1 fb1 to 36.7 fb1 of pp collision data at s√=13 TeV collected in 2015 and 2016. The efficiencies are measured separately for converted and unconverted isolated photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV. The results from the combination of three data-driven techniques are compared with the predictions from simulation after correcting the variables describing the shape of electromagnetic showers in simulation for the average differences observed relative to data. Data-to-simulation efficiency ratios are determined to account for the small residual efficiency differences. These factors are measured with uncertainties between 0.5% and 5% depending on the photon transverse momentum and pseudorapidity. The impact of the isolation criteria on the photon identification efficiency, and that of additional soft pp interactions, are also discussed. The probability of reconstructing an electron as a photon candidate is measured in data, and compared with the predictions from simulation. The efficiency of the reconstruction of photon conversions is measured using a sample of photon candidates from Z→μμγ events, exploiting the properties of the ratio of the energies deposited in the first and second longitudinal layers of the ATLAS electromagnetic calorimeter

Elliptic flow of identified hadrons in Pb-Pb collisions at 1asNN = 2.76 TeV

The elliptic flow coefficient (v2) of identified particles in Pb-Pb collisions at 1asNN = 2.76 TeV was measured with the ALICE detector at the Large Hadron Collider (LHC). The results were obtained with the Scalar Product method, a two-particle corre- lation technique, using a pseudo-rapidity gap of | 06\u3b7| > 0.9 between the identified hadron under study and the reference particles. The v2 is reported for \u3c0\ub1, K\ub1, K0S, p+p, \u3c6, \u39b+\u39b, \u39e 12+\u39e+ and \u3a9 12+\u3a9+ in several collision centralities. In the low transverse momentum (pT) region, pT 3 GeV/c

Dactyloa Biporcata Wiegmann, 1834 (Currently Anolis Biporcatus) And Anolis Petersii Bocourt, 1873 (Reptilia, Sauria): Proposed Conservation Of The Specific Names And Designation Of A Neotype For A. Biporcatus

Volume: 58Start Page: 122End Page: 12

The Composition of the Government Budget and the Dynamics of Public Debt, Public Finance Analysis

This paper investigates compositional effects on public-debt dynamics. Our contribution is twofold. First, we improve the methodology by taking explicit account of public-debt dynamics, eliminating a bias present in previous studies. Second, we estimate the evolution of debt dynamics induced by changes in the primary expenditure and revenue ratios \u2013 looking at all fiscal periods \u2013 not only consolidations as in the previous literature. Whilst we confirm that expenditure cuts are more important for debt reductions than are revenue increases, our findings contrast with the literature in that we obtain persistent debt-augmenting effects of tax reductions

APPLICATION OF LONG HIGH CAPACITY GAS-INSULATED LINES IN STRUCTURES

This brochure gives information on the application of long high capacity Gas-Insulated Lines (GIL) in structures like bridges or tunnels. It is written as a guide for technical experts involved in all aspects of GIL, but also can be used for general information on GIL technology. Basic information is included about published doc-uments, the properties of insulating gases, technical data, and standard design dimensions and specifications. It explains the planning steps and requirements con-cerning route planning and the possibilities and limits given by the GIL. The existing GILs in structures have been identi\uacfied world-wide for tunnels, above ground installations, directly buried installations, and bridges; for tunnels and bridges specific requirements, e. g. seismic, electromag\uacnetic fields and grounding, are explained and discussed for different types of bridges and tunnels. Project execution and the handling of large scale pro-jects including the operation, maintenance and repair process are covered, as well as life cycle assessment, safety analysis and detailed cost analysis