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T: Fachverband Teilchenphysik

T 49: Higgs-Boson 4 (Zerfälle in Fermionen)

T 49.6: Vortrag

Dienstag, 28. März 2017, 18:00–18:15, JUR 3

Z+jets modelling and systematics uncertainties for the SM H→ττ analysis — •Théo Megy, Lei Zhang, Karsten Köneke, and Karl Jakobs — Albert-Ludwigs-Universität Freiburg

The Z→ττ process is an important and irreducible background in the analysis searching for H→ττ decays. It is therefore crucial to understand this process well and validate the simulation of this process with suitable data control regions. However, no such control region with sufficient purity is available in data.
Assuming that the Z→ττ and Z→ℓℓ processes have identical kinematics regarding the production of the Z boson, it is possible to validate this aspect of the Z→ττ process using a pure Z→ℓℓ data control region containing a large number of such events. Utilizing these events, one can derive corrections to the simulated Z→ττ sample, including corresponding systematic uncertainties of such corrections. The status of these studies will be presented in this talk.