Orateur
M.
Nils Ruthmann
(Universitaet Freiburg)
Description
After the discovery of a Higgs boson in the $\gamma\gamma$, $ZZ^{*}$ and $WW^{*}$ final states in 2012, the search for leptonic decay modes plays a crucial role in the identification of this particle as the Standard Model Higgs boson. Tau leptons, as the heaviest charged leptons do contribute significantly to the decay width of a SM Higgs boson of mass $m_H = 125.5$ GeV.
Recent results on the search for Higgs boson decays to the $\tau\tau$ final state with the ATLAS detector are presented based on $21 fb^{-1}$ proton-proton collision data collected at $\sqrt{s}=8$ TeV.
To effectively suppress the high rate $Z\rightarrow \tau\tau$ background, the analysis exploits the distinct event topology of Higgs bosons produced via Vector-Boson-Fusion.
Based on multivariate classifiers the analysis offers a significant increase in sensitivity compared to results presented previously.
Auteur principal
M.
Nils Ruthmann
(Universitaet Freiburg)
