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Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 65: Experimentelle Methoden II

T 65.10: Talk

Wednesday, March 27, 2019, 18:15–18:30, S01

Reconstruction of heavy flavour jets for Higgs physics at future e+e colliders — •Yasser Radkhorrami1,2 and Jenny List11DESY, Hamburg, Germany — 2University of Hamburg, Hamburg, Germany

The reconstruction of heavy flavour jets plays an important role in precision measurements of the Higgs boson. Hbb is the most frequently occuring decay mode of the Higgs boson. Furthermore, measuring the Hcc decay mode will be possible for the first time at an e+e collider. The International Large Detector proposed for the International Linear Collider is designed for particle flow reconstruction and optimised to achieve a jet energy resolution of 3-4% for light-flavour jets. Due to harder fragmentation functions and presence of semi-leptonic decays, heavy-flavour jets are expected to behave differently. In this study, b- and c-jets are for the first time included in the evaluation of the jet reconstruction performance. Different strategies for correcting the b- and c-jet energy based on the identification of leptons in the jets will be presented and their impact on the jet energy resolution will be evaluated.

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