Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector

Abstract

A search is presented for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb${}^{-1}$ of pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. No excess above the Standard Model prediction is observed. Limits are set on the mass scale of the contact interaction as a function of the dark matter particle mass using an effective field theory description of the interaction of dark matter with quarks or with Z bosons. Limits are also set on the coupling and mediator mass of a model in which the interaction is mediated by a scalar particle.

arXiv comment8 pages plus author list (21 pages total), 8 figures, 4 tables, submitted to Phys. Rev. D, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2012-26/

References in corpus (39)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The anti-k_t jet clustering algorithm
• A Brief Introduction to PYTHIA 8.1
• Particle Dark Matter: Evidence, Candidates and Constraints
• Parton distributions for the LHC
• Asymptotic formulae for likelihood-based tests of new physics
• MadGraph 5 : Going Beyond
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• The ATLAS Simulation Infrastructure
• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• Dark Matter Results from 225 Live Days of XENON100 Data
• PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays
• Vector boson pair production at the LHC
• Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector
• Precise Relic WIMP Abundance and its Impact on Searches for Dark Matter Annihilation
• Constraints on Dark Matter from Colliders
• Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
• Missing Energy Signatures of Dark Matter at the LHC
• Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data
• Performance of missing transverse momentum reconstruction in proton-proton collisions at 7 TeV with ATLAS
• First dark matter search results from a 4-kg CF${}_3$I bubble chamber operated in a deep underground site
• Maverick dark matter at colliders
• W+W-, WZ and ZZ production in the POWHEG BOX
• Search for dark matter annihilations in the Sun with the 79-string IceCube detector
• CDMSlite: A Search for Low-Mass WIMPs using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment
• Final Analysis and Results of the Phase II SIMPLE Dark Matter Search
• On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC
• Constraints on Low-Mass WIMP Interactions on 19F from PICASSO
• Search for dark matter and large extra dimensions in monojet events in pp collisions at sqrt(s) = 7 TeV
• Search for Invisible Decays of a Higgs Boson Produced in Association with a Z Boson in ATLAS
• Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector
• Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at sqrt(s)=8 TeV with the ATLAS detector
• Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
• Search for dark matter candidates and large extra dimensions in events with a photon and missing transverse momentum in pp collision data at sqrt(s) = 7 TeV with the ATLAS detector
• Collider searches for dark matter in events with a Z boson and missing energy
• Searching for Dark Matter at the LHC with a Mono-Z
• Bounds on Dark Matter Interactions with Electroweak Gauge Bosons
• Interplay between Fermi gamma-ray lines and collider searches

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• Boosting Invisible Higgs Searches by Tagging a Gluon Jet for Gluon Fusion Process
• Confronting the Inert Doublet Model with results from Run 1 of the LHC
• ALPs EFT & Collider Signatures