Abstract
A search is presented for heavy-quark pair production () under the decay hypothesis with , , for up-type or , for down-type . The search is performed with of integrated luminosity from collisions at collected by the ATLAS detector at the CERN LHC. Dilepton final states are selected, requiring large missing transverse momentum and at least two jets. Mass reconstruction of heavy-quark candidates is performed by assuming that the boson decay products are nearly collinear. The data are in agreement with standard model expectations; a heavy quark with mass less than 350 GeV is excluded at 95% confidence level.
3 More- Received 15 February 2012
DOI:https://doi.org/10.1103/PhysRevD.86.012007
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© 2012 CERN, for the ATLAS Collaboration