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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

The collaboration
Phys.Rev.Lett. 112 (2014) 041802, 2014

Abstract (data abstract)
CERN-LHC. A search is presented for dark matter pair production in association with a W or Z boson in pp collisions representing 20.3 fb^-1 of integrated luminosity at sqrt(s) = 8 TeV using data recorded with the ATLAS detector in 2012 at the Large Hadron Collider. Events with a hadronic jet with the jet-mass consistent with a W or Z boson, and with large missing transverse momentum are analyzed. The data are consistent with the Standard Model expectations, and limits are set on the mass scale in effective field theories that describe the interaction of dark matter and Standard Model particles.

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Data from Figure 2

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Distribution of M(jet) in the data and for the predicted background in the top control region (CR) with one muon,...

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Data from Figure 3 (top)

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Distribution of M(jet) in the data and for the predicted background in the signal region (SR) with ETmiss > 350...

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Data from Figure 3 (bottom)

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Distribution of M(jet) in the data and for the predicted background in the signal region (SR) with ETmiss > 500...

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Data from Figure 4

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Observed limits on the effective theory mass scale M* as a function of the dark matter mass M(chi) at 90%...

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Data from Figure 5

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Limits on chi-nucleon cross sections as a function of M(chi) at 90% confidence-level.

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Data from Figure 6

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Limit on the Higgs boson cross section for decay to invisible particles divided by the cross section for decays to...