Searching for t-tbar Resonances in the Lepton plus Jets Channel using pp Collisions at sqrt(s) = 7 TeV with ATLAS

We present results from a search for t-tbar pair resonaces in the lepton plus jets final state using data from the ATLAS experment in pp collisions at root{s} = 7 TeV. This search makes use of b-tagging in order to reduce the W plus jet background and a kinematic fitter to improve the t-tbar mass resolution. Prospects for limits of leptophobic topcolor Z' and Randall-Sundrum Kaluza-Klein gluons are given.