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    Performance of algorithms that reconstruct missing transverse momentum in root s=8 TeV proton-proton collisions in the ATLAS detector

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    Author
    Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Abeloos, B; Aben, R; Abolins, M; AbouZeid, OS; Abrarnowicz, H; Abreu, H; ...
    Date
    2017-04-13
    Source Title
    European Physical Journal C: Particles and Fields
    Publisher
    SPRINGER
    University of Melbourne Author/s
    Nuti, Francesco; Milesi, Marco; Barberio, Luigia; Kubota, Takashi; ZANZI, DANIELE; Taylor, Geoffrey; Urquijo, Phillip; Brennan, Amelia; Rados, Pere; Petersen, Brian; ...
    Affiliation
    School of Physics
    Metadata
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    Document Type
    Journal Article
    Citations
    Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Abolins, M., AbouZeid, O. S., Abrarnowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adamczyka, L., Adams, D. L., Adelman, J., Adomeit, S., Adye, T., Affolder, A. A. ,... Zwalinski, L. (2017). Performance of algorithms that reconstruct missing transverse momentum in root s=8 TeV proton-proton collisions in the ATLAS detector. EUROPEAN PHYSICAL JOURNAL C, 77 (4), https://doi.org/10.1140/epjc/s10052-017-4780-2.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/259217
    DOI
    10.1140/epjc/s10052-017-4780-2
    Abstract
    The reconstruction and calibration algorithms used to calculate missing transverse momentum ([Formula: see text] ) with the ATLAS detector exploit energy deposits in the calorimeter and tracks reconstructed in the inner detector as well as the muon spectrometer. Various strategies are used to suppress effects arising from additional proton-proton interactions, called pileup, concurrent with the hard-scatter processes. Tracking information is used to distinguish contributions from the pileup interactions using their vertex separation along the beam axis. The performance of the [Formula: see text] reconstruction algorithms, especially with respect to the amount of pileup, is evaluated using data collected in proton-proton collisions at a centre-of-mass energy of 8 [Formula: see text] during 2012, and results are shown for a data sample corresponding to an integrated luminosity of [Formula: see text]. The simulation and modelling of [Formula: see text]  in events containing a Z boson decaying to two charged leptons (electrons or muons) or a W boson decaying to a charged lepton and a neutrino are compared to data. The acceptance for different event topologies, with and without high transverse momentum neutrinos, is shown for a range of threshold criteria for [Formula: see text] , and estimates of the systematic uncertainties in the [Formula: see text]  measurements are presented.

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