Testing ATLAS Diboson Excess with Dark Matter Searches at LHC

Abstract

The ATLAS collaboration has recently reported a 2.6 sigma excess in the search for a heavy resonance decaying into a pair of weak gauge bosons. Only fully hadronic final states are being looked for in the analysis. If the observed excess really originates from the gauge bosons' decays, other decay modes of the gauge bosons would inevitably leave a trace on other exotic searches. In this paper, we propose the use of the Z boson decay into a pair of neutrinos to test the excess. This decay leads to a very large missing energy and can be probed with conventional dark matter searches at the LHC. We discuss the current constraints from the dark matter searches and the prospects. We find that optimizing these searches may give a very robust probe of the resonance, even with the currently available data of the 8 TeV LHC.

10 pages, 2 figures; v2: added references, fixed typos; v3: added some clarifications and figures showing MET distributions, published version

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Cited by in corpus (11)

• Multiboson production in W' decays
• The ATLAS Diboson Resonance in Non-Supersymmetric SO(10)
• The ATLAS Di-boson Excess Could Be an R-parity Violating Di-smuon Excess
• The Diboson Excesses in an Anomaly Free Leptophobic Left-Right Model
• Diboson anomaly: heavy Higgs resonance and QCD vector-like exotics
• Combination of Run-1 Exotic Searches in Diboson Final States at the LHC
• ATLAS diboson excess from low scale supersymmetry breaking
• Alternative search strategies for a BSM resonance fitting ATLAS diboson excess
• The Diboson Excesses in Leptophobic $U(1{)}_{\mathrm{LP}}$ Models from String Theories
• ATLAS Diboson Excess from Stueckelberg Mechanism
• Angular observables for spin discrimination in boosted diboson final states