Search for dark matter at $\sqrt{s}=13$ TeV in final states containing an energetic photon and large missing transverse momentum with the ATLAS detector

Abstract

Results of a search for physics beyond the Standard Model in events containing an energetic photon and large missing transverse momentum with the ATLAS detector at the Large Hadron Collider are reported. As the number of events observed in data, corresponding to an integrated luminosity of 36.1 $\text{f}{b}^{-1}$ of proton-proton collisions at a centre-of-mass energy of 13 TeV, is in agreement with the Standard Model expectations, exclusion limits in models where dark-matter candidates are pair-produced are determined. For dark-matter production via an axial-vector or a vector mediator in the s-channel, this search excludes mediator masses below 750-1200 GeV for dark-matter candidate masses below 230-480 GeV at 95% confidence level, depending on the couplings. In an effective theory of dark-matter production, the limits restrict the value of the suppression scale $M_{\ast }$ to be above 790 GeV at 95% confidence level. A limit is also reported on the production of a high-mass scalar resonance by processes beyond the Standard Model, in which the resonance decays to $Z\gamma$ and the Z boson subsequently decays into neutrinos.

45 pages in total, author list starting page 29 7 figures, 8 tables, to be submitted to EPJC. All figures including auxiliary figures are available in: and Tables are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2016-32

References in corpus (25)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Parton distributions for the LHC
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• LHAPDF6: parton density access in the LHC precision era
• Results from a search for dark matter in the complete LUX exposure
• A parton shower algorithm based on Catani-Seymour dipole factorisation
• Constraints on Dark Matter from Colliders
• Dark Matter Results from First 98.7-day Data of PandaX-II Experiment
• Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC
• Measurement of the $Z/{\gamma }^{\ast }$ boson transverse momentum distribution in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data
• Characterising dark matter searches at colliders and direct detection experiments: Vector mediators
• Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
• Study of ${\chi }_{cJ}$ decaying into $\varphi$ $K^{\ast }(892)$ $\bar{K}$
• Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at sqrt(s) = 13 TeV
• Low-Scale Technicolor at the Tevatron and LHC
• Search for Large Extra Dimensions via Single Photon plus Missing Energy Final States at sqrt(s) = 1.96 TeV
• Recommendations of the LHC Dark Matter Working Group: Comparing LHC searches for heavy mediators of dark matter production in visible and invisible decay channels
• LHC constraints on gauge boson couplings to dark matter
• A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 $pp$-collision data with the ATLAS detector
• Search for dark matter in association with a Higgs boson decaying to $b$-quarks in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for dark matter produced in association with a hadronically decaying vector boson in pp collisions at $\sqrt{s}$=13 TeV with the ATLAS detector
• Search for heavy resonances decaying to a $Z$ boson and a photon in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

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• Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
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• Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a $Z$ boson in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• Constraints on mediator-based dark matter and scalar dark energy models using $\sqrt{s}=13$ TeV $pp$ collision data collected by the ATLAS detector
• Search for dark matter produced in association with bottom or top quarks in $\sqrt{s}$ = 13 TeV pp collisions with the ATLAS detector
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• The experimental status of direct searches for exotic physics beyond the standard model at the Large Hadron Collider
• Phenomenology of scotogenic scalar dark matter
• Dark matter production in association with a single top-quark at the LHC in a two-Higgs-doublet model with a pseudoscalar mediator
• Interplay of the LHC and non-LHC Dark Matter searches in the Effective Field Theory approach
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• Statistical Analyses of Higgs- and Z-Portal Dark Matter Models
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• Spontaneous Freeze Out of Dark Matter From an Early Thermal Phase Transition
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• Mono-Higgs Signature in the Scotogenic Model with Majorana Dark Matter
• Search for heavy resonances decaying to a photon and a hadronically decaying $Z/W/H$ boson in $pp$ collisions at $\sqrt{s}=13$ $\mathrm{TeV}$ with the ATLAS detector
• Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector
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• Anomalous couplings in $Z\gamma$ events at NNLO+PS and improving $\nu \bar{\nu }\gamma$ backgrounds in dark-matter searches
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• Leptophilic Composite Asymmetric Dark Matter and its Detection
• Search for dijet resonances using events with three jets in proton-proton collisions at $\sqrt{s}=$ 13 TeV
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• Whac-a-constraint with anomaly-free dark matter models
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• Dark matter as the source of neutrino mass: theory overview and experimental prospects
• Spectral Decomposition of Missing Transverse Energy at Hadron Colliders
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• Probing compressed dark sectors at 100 TeV in the dileptonic mono-Z channel
• Decoding Dark Matter at future $e^{+}{e}^{-}$ colliders
• GLIMPSE: Graphene-based super-Light Invisible Matter Particle SEarch
• Dark Matter Search at Colliders and Neutrino Floor
• A model of light pseudoscalar dark matter
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• Connection between diphoton and triboson channels in new physics searches
• New Physics and Two Boosted W-jets plus Missing Energy
• Dark Matter Phenomenology: Sterile Neutrino Portal and Gravitational Portal in Extra-Dimensions