Prospects for early top anti-top resonance searches in ATLAS
arXiv:1010.0362
Abstract
Searches for signatures of new physics in top anti-top events at the LHC require efficient reconstruction of top quarks with a broad range of transverse momenta. Three new reconstruction schemes are developed to deal with the large variety of top decay topologies. Their performance on the lepton + jets final state is evaluated using a detailed simulation of signal and background processes. Compared to previous ATLAS studies, a much improved reconstruction efficiency is found over a large top anti-top invariant mass range. As a consequence, even in the earliest phase of the experiment, ATLAS is expected to significantly extend the mass reach of existing searches.
arXiv comment3 pages, contribution to the 21st Hadron Collider Physics Symposium (HCP 2010), Toronto, Canada, 23 - 27 August 2010