CMS Detector Sensitivity for the Discovery of Supersymmetry with Two Same-sign Leptons, Jets and MET

Details CMS Detector Sensitivity for the Discovery of Supersymmetry with Two Same-sign Leptons, Jets and MET CMS Detector Sensitivity for the Discovery of Supersymmetry with Two Same-sign Leptons, Jets and MET

2009-11-26

arxiv.org/abs/0911.5021v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 4 tables, to appear in the proceedings of SUSY09, the 17th International Conference on Supersymmetry and the Unificat

Scientific paper

There is strong theoretical motivation for the study of events with 2 same-sign leptons, jets, and missing transverse energy (MET) at the Large Hadron Collider (LHC). There are many compelling models, for instance, supersymmetry and extra dimensions, which predict such signatures. On the other hand, same-sign lepton production is very suppressed in the Standard Model. Preparations are underway for this search using the Compact Muon Solenoid (CMS) experiment, which will take data at the LHC, scheduled to start running in 2009. The CMS detector has very good measurement capabilities for muons, electrons, jets and MET, and methods are being developed to perform sensitive searches using the first collected data. Using results from a previous Monte Carlo study based on this signature at a center-of-mass energy of 14 TeV, we make discovery potential projections for the early 10 TeV LHC runs. While the results of these extrapolations are encouraging, they are based purely on Monte Carlo and, as such, should be considered only as a rough guide. Data-driven background estimations will be critical for the success of this analysis and are under development.

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