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| Home > Publications database > Search for a new leptonically decaying neutral vector boson in association with missing transverse energy in proton–proton collisions at $\sqrt{s}=13~$TeV with the ATLAS detector |
| Report | PUBDB-2023-07356 |
2023
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Please use a persistent id in citations: doi:10.3204/PUBDB-2023-07356
Report No.: ATLAS-CONF-2023-045
Abstract: A search for dark matter particles produced in association with a new neutral vector boson is performed using proton–proton collisions at $\sqrt{s} = 13$ TeV, corresponding to an integrated luminosity of 140 fb$^{−1}$ recorded by the ATLAS detector at the Large Hadron Collider. Decays of the Z′ boson to same-flavour light leptons ($e^+e^−$/$\mu^+\mu^−$) are studied for Z′ masses above 200 GeV. No significant excess over the Standard Model prediction is observed. The results of this search are interpreted for several dark-Higgs and light-vector benchmark model scenarios. Cross-section limits are set considering each benchmark scenario, as well as limits on the coupling of the Z′ with leptons.
Keyword(s): talk ; p p: scattering ; p p: colliding beams ; dark matter: hidden sector ; Z': mass ; Z': leptonic decay ; Z': coupling ; transverse energy: missing-energy ; benchmark ; vector boson: leptonic decay ; lepton: pair production ; electron: pair production ; muon: pair production ; ATLAS ; new particle ; new physics: search for ; CERN LHC Coll ; channel cross section: upper limit ; coupling constant: upper limit ; experimental results ; 13000 GeV-cms ; dark matter ; dark sector ; BSM resonance
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