1 Ocak 2021 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <dc:creator>CERN İşbirliği</dc:creator>
  <dc:date>2021-01-01</dc:date>
  <dc:description>This paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, a, which decays into the dark-matter particles. Processes where the pseudoscalar mediator is produced in association with a single top quark in the 2HDM+a model are explored for the first time at the LHC. Several final states which include either one or two charged leptons (electrons or muons) and a significant amount of missing transverse momentum are considered. The analysis is based on proton–proton collision data collected with the ATLAS experiment at     $\sqrt{s}=13$   TeV during LHC Run 2 (2015–2018), corresponding to an integrated luminosity of 139     ${\text{fb}}^{-1}$  . No significant excess above the Standard Model predictions is found. The results are expressed as 95% confidence-level limits on the parameters of the signal models considered.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/240290</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:240290</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>European Physical Journal C 81(10)</dc:source>
  <dc:title>Search for dark matter produced in association with a single top quark in     $\sqrt{s}=13$   TeV     $\mathrm{pp}$   collisions with the ATLAS detector</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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