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Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
Zwalinski, L.
2015
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
This article reports on a search for dark matter pair production in association with bottom or top quarks in 20.3 fb−1 of pp collisions collected at (Formula presented.) TeV by the ATLAS detector at the LHC. Events with large missing transverse momentum are selected when produced in association with high-momentum jets of which one or more are identified as jets containing b-quarks. Final states with top quarks are selected by requiring a high jet multiplicity and in some cases a single lepton. The data are found to be consistent with the Standard Model expectations and limits are set on the mass scale of effective field theories that describe scalar and tensor interactions between dark matter and Standard Model particles. Limits on the dark-matter–nucleon cross-section for spin-independent and spin-dependent interactions are also provided. These limits are particularly strong for low-mass dark matter. Using a simplified model, constraints are set on the mass of dark matter and of a coloured mediator suitable to explain a possible signal of annihilating dark matter
DOI
10.1140/epjc/s10052-015-3306-z
WOS
WOS:000354546000007
Archivio
http://hdl.handle.net/11390/1096657
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84924405199
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924405199&partnerID=40&md5=cb64bc7a3ffcda48faaf3e499d682cee
Diritti
metadata only access
Soggetti
  • Physics and Astronomy...

  • Engineering (miscella...

Scopus© citazioni
68
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
77
Data di acquisizione
Mar 25, 2024
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