Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at root(s)=7 TeV with the ATLAS detector
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 86, no 1, 012007- p.Article in journal (Refereed) Published
A search is presented for heavy-quark pair production (Q (Q) over bar) under the decay hypothesis Q (Q) over bar -> W(+)qW(-)(q) over bar with q = d, s, b for up-type Q or q = u, c for down-type Q. The search is performed with 1.04 fb(-1) of integrated luminosity from pp collisions at root s = 7 TeV 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 W 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.
Place, publisher, year, edition, pages
2012. Vol. 86, no 1, 012007- p.
IdentifiersURN: urn:nbn:se:su:diva-80291DOI: 10.1103/PhysRevD.86.012007ISI: 000306650000002OAI: oai:DiVA.org:su-80291DiVA: diva2:556784