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Search for dark matter in events with aZboson and missing transverse momentum inppcollisions ats=8 TeVwith the ATLAS detector

Aad, G.
•
Abajyan, T.
•
Abbott, B.
altro
GIORDANI, Mario
2014
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3fb-1 of pp collisions at s=8TeV 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.
DOI
10.1103/PhysRevD.90.012004
WOS
WOS:000339169600002
Archivio
http://hdl.handle.net/11390/1109867
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84904290196
Diritti
metadata only access
Scopus© citazioni
100
Data di acquisizione
Jun 14, 2022
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Web of Science© citazioni
37
Data di acquisizione
Mar 20, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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