Stop searches in 2012
Tilman Plehn, Michael Spannowsky, Michihisa Takeuchi
TL;DR
This paper evaluates various strategies for searching for scalar top pairs at the 8TeV LHC run, demonstrating that dedicated stop searches are increasingly sensitive for certain mass ranges using different channels and analysis techniques.
Contribution
It presents new analysis strategies and results for stop searches at 8TeV, including hadronic, semi-leptonic, and di-lepton channels with advanced tagging and variable techniques.
Findings
Signal-to-background ratios around unity for 400 GeV stop mass
Combined analyses improve sensitivity to stop signals
Different channels provide complementary search strategies
Abstract
For this year's 8TeV run of the LHC we lay out different strategies to search for scalar top pairs. We show results for the hadronic and for the semi-leptonic channels based on hadronic top tagging. For the di-lepton channel we illustrate the impact of transverse mass variables. Each of our signal-to-background ratios ranges around unity for a stop mass around 400GeV. The combined signal significances show that dedicated stop searches are becoming sensitive over a non-negligible part of parameter space.
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