Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 65: Experimentelle Methoden II
T 65.10: Vortrag
Mittwoch, 27. März 2019, 18:15–18:30, S01
Reconstruction of heavy flavour jets for Higgs physics at future e+e− colliders — •Yasser Radkhorrami1,2 and Jenny List1 — 1DESY, Hamburg, Germany — 2University of Hamburg, Hamburg, Germany
The reconstruction of heavy flavour jets plays an important role in precision measurements of the Higgs boson. H→ bb is the most frequently occuring decay mode of the Higgs boson. Furthermore, measuring the H→ cc 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.