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Measurement of MET and other global distributions in top pair events

Results of the normalised differential cross section measurements of top quark pair production with respect to a number of event-level observables are presented, including missing transverse energy, jet transverse momentum scalar sum, total event transverse momentum scalar sum, leptonic W transverse...

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Detalles Bibliográficos
Autor principal: CMS Collaboration
Publicado: 2013
Materias:
Acceso en línea:http://cds.cern.ch/record/1599734
Descripción
Sumario:Results of the normalised differential cross section measurements of top quark pair production with respect to a number of event-level observables are presented, including missing transverse energy, jet transverse momentum scalar sum, total event transverse momentum scalar sum, leptonic W transverse momentum, and leptonic W transverse mass. Approximately 20/fb of data collected using the CMS detector at the LHC in 2012 at a centre-of-mass energy of $\sqrt{s} = $ 8 TeV are used. The analysis is performed for semileptonic top-antitop events where the charged lepton is either an electron or a muon. Unfolding is performed such that the results can be compared with theoretical predictions at generator level. The results are consistent with standard model expectations.