Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 5: Higgs decay in fermions I

T 5.4: Talk

Monday, March 15, 2021, 16:45–17:00, Te

The H→ττ couplings measurement as an example to validate fit models — •Michael Hübner, Philip Bechtle, Klaus Desch, and Christian Grefe — Universität Bonn

With increasing statistics of the pp collision data recorded by the ATLAS experiment at the LHC, the focus of measurements of known processes shifts more and more to precision measurements. Such an example is the measurement of the H→ττ couplings in multiple phase space regions which can be interpreted in the Simplified Template Cross Section framework. This is an example of how fit models can grow more complex due to an increasing number of phase space regions and/or processes to consider.

This talk will introduce concepts of how to validate such complex fit models. Different individual steps of this validation process, each one involving elaborate statistical methods, will be discussed. Possible conclusions and interpretations of the results of these steps will be discussed.