Estimation of SM backgrounds to SUSY search in the 1-lepton + jets + MET channel

Details Estimation of SM backgrounds to SUSY search in the 1-lepton + jets + MET channel Estimation of SM backgrounds to SUSY search in the 1-lepton + jets + MET channel

2011-05-31

arxiv.org/abs/1105.6207v1

Physics

High Energy Physics

High Energy Physics - Experiment

Contribution to conference proceedings (46th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile

Scientific paper

The ATLAS Collaboration has reported the first results of the search for SUSY particles in 1-lepton + 3 jets + MET final states. An essential ingredient for these results is a reliable background estimation in the signal region, in particular of the ttbar, W+jets and QCD backgrounds. The estimation of these three backgrounds is explained in this paper. The ttbar and W+jets backgrounds are obtained from a background dominated control region and extrapolated to the signal region, whereas for the estimation of the QCD background a matrix method is used.

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