Pavel JEZ

Niels Bohr Institute, Copenhagen - Denmark

I am a Ph.D student at Niels Bohr Institute in Copenhagen.

At the moment I am involved in the commissioning and optimizing of the Tau trigger at the ATLAS experiment at CERN. My work is focused on the performance of the Tau trigger in the environment with multiple collisions per bunch crossing, so-called pile-up collisions. The study is done on the Monte Carlo samples produced with the Athena software framework.

For my analysis I am using ROOT and its toolkit for multi-variate analysis in particular. The goal of my study is to find an ideal set of observables which can be used to select events with hadronically decaying tau leptons with the top performance in terms of signal efficiency and background rejection.