Speaker
Muhammad Alhroob
(Uni-Bonn)
Description
At LHC single top quarks will be produced with more than 1 million events every year, a precise measurement of the cross section and comparing it with theoretical predictions will provide a crucial test of SM. For this reason the samples have to be purified from the background as much as possible and the remnant backgrounds such as W+jets and ttbar after cuts have to be measured. One of the robust methods is the fraction fitting where uncertainties coming from the data and MC are taken into account. In this study a fraction fitting method was applied in order to measure the W+jets and Z+jets background fractions and it was tested on a pseudo-dataset of muon final state events.
