SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 101: Invited Topical Talks III-A

T 101.3: Eingeladener Vortrag

Donnerstag, 23. März 2023, 14:40–15:00, HSZ/0003

Belle II opportunities in B-decays with invisible signatures — •Slavomira Stefkova for the Belle II collaboration — KIT, Karlsruhe, Germany

B→ Kνν decays are excellent probes for finding new physics for two reasons. Firstly, many extensions to the Standard Model are expected to manifest themselves in these very decays. Secondly, they belong to the family of b→ s l l transitions, where tensions with SM have been measured. They are, however, experimentally challenging as not only are they rare but they contain two neutrinos leaving no signature in the detector. In this talk I will present the latest status of the measurements of observables in B→ Kνν decays with the data collected by the Belle II experiment. I will also outline the prospects for future measurements of B→ Kνν decays and similar processes using the growing Belle II dataset.