H→ττ in CMS: a particle flow analysis.
Colin Bernet
Lundi 13/05/2013, 11:00
Bat 141, salle André Berthelot (143) , CEA Paris-Saclay

This winter, CMS presented in Moriond the first strong hint for the decay of the new boson into a pair of taus. The analysis is based on a variety of final states corresponding to the decay modes of the two taus, containing 0 to two leptons. Several event categories are defined to increase the signal over background ratio, for example using the characteristic di-jet signature of the vector-boson fusion Higgs production process. All the physics observables used in the analysis (taus, lepton identification and isolation, MET, jets) and interesting analysis tricks are based on the particle-flow event reconstruction, which will be described in details.


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