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

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...

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Detalles Bibliográficos
Autor principal: Lorenz, Jeanette M.
Lenguaje:eng
Publicado: 2011
Materias:
Detectors and Experimental Techniques
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/1352457
Descripción
Sumario: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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