Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at s√=13s=13 TeV using the ATLAS detector

, Agni Bethani, Rafal Bielski, Ian Connelly, Brian Cox, Cinzia Da Via, Nicholas Dann, Giulio Forcolin, Alessandra Forti, Julia Iturbe Ponce, James Howarth, Frederick Loebinger, Stephen Marsden, Jiri Masik, Stephen Menary, Francisca Munoz Sanchez, Alexander Oh, Joleen Pater, Yvonne Peters, Rebecca PicklesAndrew Pilkington, Arnaud Pin, Darren Price, Yang Qin, John Raine, Jacob Rawling, Rhys Roberts, Schweiger H, Savanna Shaw, Lee Tomlinson, Stephen Watts, Fabian Wilk, Terence Wyatt

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Observables sensitive to the anomalous production of events containing hadronic jets and missing momentum in the plane transverse to the proton beams at the Large Hadron Collider are presented. The observables are defined as a ratio of cross sections, for events containing jets and large missing transverse momentum to events containing jets and a pair of charged leptons from the decay of a Z/γ∗Z/γ∗ boson. This definition minimises experimental and theoretical systematic uncertainties in the measurements. This ratio is measured differentially with respect to a number of kinematic properties of the hadronic system in two phase-space regions; one inclusive single-jet region and one region sensitive to vector-boson-fusion topologies. The data are found to be in agreement with the Standard Model predictions and used to constrain a variety of theoretical models for dark-matter production, including simplified models, effective field theory models, and invisible decays of the Higgs boson. The measurements use 3.2 fb −1−1 of proton–proton collision data recorded by the ATLAS experiment at a centre-of-mass energy of 13 TeVTeV and are fully corrected for detector effects, meaning that the data can be used to constrain new-physics models beyond those shown in this paper.
    Original languageEnglish
    Article number765
    JournalThe European Physical Journal C: Particles and Fields
    Volume77
    Early online date15 Nov 2017
    DOIs
    Publication statusPublished - Nov 2017

    Research Beacons, Institutes and Platforms

    • National Graphene Institute

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