# 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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00969107
Contributor : Emmanuelle Vernay <>
Submitted on : Wednesday, April 2, 2014 - 9:57:11 AM
Last modification on : Thursday, June 17, 2021 - 3:47:32 AM

### Citation

G. Aad, S. Albrand, J. Brown, B. Clement, J. Collot, et al.. 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. Physical Review D, American Physical Society, 2014, 90, pp.012004. ⟨10.1103/PhysRevD.90.012004⟩. ⟨in2p3-00969107⟩

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