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

2011/05/31 by Jeanette Miriam Lorenz, Jeanette M. Lorenz, Lorenz, Jeanette M.
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.1105.6207

Contribution to conference proceedings (46th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 13 - 20 Mar 2011)

arxiv created 2011/05/31 · arxiv updated 2011/06/01

Abstract

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.

Related

• Data-driven Estimation of SM Backgrounds for SUSY Searches at the LHC
• Data-driven Estimations of Z, W and Top Backgrounds
• Data driven background determination for SUSY searches with ATLAS
• Distributions for one-lepton SUSY Searches with the ATLAS Detector
• Background estimation in the search for single production of vector-like\n quarks decaying into Wb in pp collisions using a data-driven method at\n \√(s) = 13 TeV with the ATLAS detector