%0 Thesis
%A Reichenbach, Leonhard
%T Identification of Charged Leptons in Jets at Future Higgs Factories
%I University of Hamburg
%V Masterarbeit
%C Hamburg
%M PUBDB-2025-00528
%P 131
%D 2022
%Z Masterarbeit, University of Hamburg, 2022
%X The 2012 discovery of the 12 GeV Higgs boson at the LHC, and of no other particle since then, have brought a consensus to the particle physics community that an e+e- Higgs factory is the highest priority next collider. However, Higgs measurements suffer from the loss of undetected neutrino energy due to semi-leptonic decays (SLDs) in the most common decay mode H to b anti-b. Previous work has shown the possibility to reconstruct the missing neutrino if the corresponding lepton and its production vertex are found. Search algorithms for these leptons are already in use to improve b-jet identification.In this work, a novel BDT-based method to identify SLD electrons and muons has been developed. Furthermore, a particle identification (PID) method for electrons and muons from jets was also built.The new PID can identify electrons with an efficiency of 95
%F PUB:(DE-HGF)19
%9 Master Thesis
%U https://bib-pubdb1.desy.de/record/622848