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T: Fachverband Teilchenphysik
T 71: Higgs 3 (coupling to b and c quarks)
T 71.5: Talk
Wednesday, March 6, 2024, 17:00–17:15, Geb. 30.41: HS 2
Flavour Sensitive Observables in Hadronic Higgs Decays at NLO QCD — •Benjamin Campillo Aveleira1,2, Aude Gehrmann-De Ridder2,4, and Christian Tobias Preuss2,3 — 1Institute for Theoretical Physics, KIT, 76128 Karlsruhe — 2Institute for Theoretical Physics, ETH, CH-8093 Zürich, Switzerland — 3Department of Physics, University of Wuppertal, 42119 Wuppertal — 4Department of Physics, University of Zürich, CH-8057 Zürich,
We study flavour sensitive observables in hadronic Higgs decays up to next-to-leading-order in QCD. In a first step we look at an infrared safe definition of jet flavour. The two algorithms that will accomplish this and that will be discussed in this talk are the flavour dressing and flavour kT algorithm. Having an infrared flavour safe algorithm, we apply it to flavour-sensitive observables. The main observables of interest are the energy of the (sub-)leading flavoured jet and the angle between the leading bb pair as well as its invariant mass. It will be shown: The distributions look quite different in the two categories and thus they can be used as a discriminator. Furthermore, we also discuss that the flavour dressing algorithm is better suited to make theoretical predictions, which can be used to compare to experiments.