Abstract
A feasibility study is presented for the search of the lightest top squark () in a compressed scenario, where its mass is approximately equal to the sum of the masses of the top quark and the lightest neutralino and there exists no limit from the current 8 TeV data or from the 14 TeV projections. The study is performed in the final state of two jets, one lepton, large missing transverse energy, and two energetic jets with a large separation in pseudorapidity, in opposite hemispheres, and with large dijet mass. The analysis shows that the LHC could probe compressed top-squark masses with an integrated luminosity of for two- () and three-body () final states arising from the top-squark decay at significance with no systematic uncertainty. After including the systematics, the significance for and is expected to be for luminosity with 3(5)% systematic uncertainty, while the significance becomes for the same top-squark mass with .
- Received 16 December 2013
DOI:https://doi.org/10.1103/PhysRevD.90.095022
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