20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Search for heavy top-like fourth generation quarks in the dilepton channel with a collinear approximation at ATLAS

Not scheduled
Dauphine (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo



Michael Werth (UC Irvine ATLAS)


We present a search for pair production of heavy quarks Q4 decaying via Q4 -> qW -> q l nu. We perform approximate mass reconstruction by assuming that the boosted W decays to a charged lepton and neutrino which are nearly collinear. We use 37 inverse picobarns of integrated luminosity from pp collisions at sqrt(s) = 7 TeV collected by the ATLAS detector. The data are in agreement with standard model expectations; we exclude at 95% confidence level a heavy quark with mass less than 270 GeV.

Primary author

Michael Werth (UC Irvine ATLAS)


Daniel Whiteson (UC Irvine ATLAS)

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