We report a new search for dark matter in a data sample of an integrated luminosity of 7.7fb -1 of Tevatron pp̄ collisions at √s=1.96TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp̄→t+D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0-150GeV/c2.

Search for a dark matter candidate produced in association with a single top quark in pp̄ collisions at √s=1.96TeV

Manca, G.;
2012-01-01

Abstract

We report a new search for dark matter in a data sample of an integrated luminosity of 7.7fb -1 of Tevatron pp̄ collisions at √s=1.96TeV, collected by the CDF II detector. We search for production of a dark-matter candidate, D, in association with a single top quark. We consider the hadronic decay mode of the top quark exclusively, yielding a final state of three jets with missing transverse energy. The data are consistent with the standard model; we thus set 95% confidence level upper limits on the cross section of the process pp̄→t+D as a function of the mass of the dark-matter candidate. The limits are approximately 0.5 pb for a dark-matter particle with mass in the range of 0-150GeV/c2.
2012
Physics and astronomy (all)
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/231649
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 22
  • ???jsp.display-item.citation.isi??? 19
social impact