Search for dark matter in events with a hadronically decaying vector boson and missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Abstract

A search for dark matter (DM) particles produced in association with a hadronically decaying vector boson is performed using $pp$ collision data at a centre-of-mass energy of $\sqrt{s}=13$ TeV corresponding to an integrated luminosity of 36.1 fb${}^{-1}$, recorded by the ATLAS detector at the Large Hadron Collider. This analysis improves on previous searches for processes with hadronic decays of $W$ and $Z$ bosons in association with large missing transverse momentum (mono-$W/Z$ searches) due to the larger dataset and further optimization of the event selection and signal region definitions. In addition to the mono-$W/Z$ search, the as yet unexplored hypothesis of a new vector boson $Z^{\prime }$ produced in association with dark matter is considered (mono-$Z^{\prime }$ search). No significant excess over the Standard Model prediction is observed. The results of the mono-$W/Z$ search are interpreted in terms of limits on invisible Higgs boson decays into dark matter particles, constraints on the parameter space of the simplified vector-mediator model and generic upper limits on the visible cross sections for $W/Z$+DM production. The results of the mono-$Z^{\prime }$ search are shown in the framework of several simplified-model scenarios involving DM production in association with the $Z^{\prime }$ boson.

arXiv comment56 pages in total, author list starting at page 40, 12 figures, 8 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-23/

References in corpus (37)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• FastJet user manual
• Parton distributions for the LHC
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Asymptotic formulae for likelihood-based tests of new physics
• A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX
• A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Parton distributions for the LHC Run II
• Event generation with SHERPA 1.1
• The total top quark pair production cross-section at hadron colliders through O(alpha_S^4)
• Scattering Amplitudes with Open Loops
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Comix, a new matrix element generator
• QCD matrix elements + parton showers: The NLO case
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• The Catchment Area of Jets
• Jet Trimming
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• Neutrino Masses from Large Extra Dimensions
• Implications of LHC searches for Higgs--portal dark matter
• Performance of $b$-Jet Identification in the ATLAS Experiment
• Trial factors for the look elsewhere effect in high energy physics
• Energy Correlation Functions for Jet Substructure
• Power Counting to Better Jet Observables
• Single-Top-Quark Production via W-Gluon Fusion at Next-to-Leading Order
• Characterising dark matter searches at colliders and direct detection experiments: Vector mediators
• QCD and Yukawa corrections to single-top-quark production via q qbar -> t bbar
• Single-top-quark production at hadron colliders
• Direct Detection of Dark Matter with MadDM v.2.0
• Phenomenology of a leptonic goldstino and invisible Higgs boson decays
• Invisible Higgs in theories of large extra dimensions

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