Embedding Technique for the ttbar Background Estimation in Charged Higgs Boson Searches
(English)Manuscript (preprint) (Other academic)
Standard Model-like decays of a top quark pair with tau leptons are the dominant background for most charged Higgs boson searches. It is shown that the background can be emulated starting from a pure ttbar->bmunu bW sample by replacing tracks and calorimeter cells on an ESD (Event Summary Data) level in close vicinity to the muon with those of a simulated tau lepton. ATLAS reconstruction algorithms are then re-run to provide higher-level objects, eliminating the need of ad-hoc corrections to the missing energy. Relevant distributions like top quark invariant masses, tau jet properties and missing transverse energy can be reproduced within a 10% level.
ATLAS Embedding Charged Higgs ttbar tau
IdentifiersURN: urn:nbn:se:uu:diva-110771OAI: oai:DiVA.org:uu-110771DiVA: diva2:278222