4-9 June 2012
Life Sciences Centre, UBC
Canada/Pacific timezone
<strong><font color="#cc0000">Abstract submission has closed</font></strong>

A search for ttbar resonances in the di-lepton channel with the ATLAS detector in 2.05/fb of pp collisions at sqrt(s) = 7 TeV

4 Jun 2012, 16:00
West Atrium (Life Sciences Centre, UBC)

West Atrium

Life Sciences Centre, UBC

University of British Columbia Vancouver, BC Canada
Poster Heavy Flavour Physics 1D: Poster Session and Coffee Break


Michele Petteni (SFU Simon Fraser University (CA))


A search for top quark pair ttbar resonances in final states where both W bosons from the top quark decay into either an electron and electron-neutrino or a muon and muon-neutrino (dilepton final state) has been performed. The data were recorded by the ATLAS experiment at the CERN Large Hadron Collider. The search uses a data sample corresponding to an integrated luminosity of 2.05 fb-1, which was recorded in 2011 at a proton-proton centre-of-mass energy of 7 TeV. No evidence for a resonance is found. Upper limits at the 95% Confidence Limit (C.L) are set on the production cross-section times branching ratio of the resonance decaying to ttbar pairs as a function of the resonance pole mass.

<strong>Collaboration Name</strong><br /><font color="#000099">Please enter the name of<br />the collaboration or group<br />using the acronym, as in:<br /><font color="#ff0000">ABC Collaboration</font>

ATLAS Collaboration

<strong>E-mail Address</strong> michele.petteni@cern.ch

Primary author

Michele Petteni (SFU Simon Fraser University (CA))

Presentation Materials