Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 88: Flavorphysik III

T 88.1: Group Report

Thursday, March 28, 2019, 16:00–16:20, S15

The Tau Physics Program at Belle II — •Thomas Kraetzschmar for the Belle 2 collaboration — Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, Deutschland

The Belle II experiment at the SuperKEKB collider is a next-generation B factory, with a rich program of Standard Model and Beyond the Standard Model physics. The large database to be collected thanks to the world-record luminosity of the machine will allow measurements with unprecedented precision. In the area of tau physics, this will enable new and/or more precise measurement of Standard Model processes as well as Beyond the Standard Model searches. Because of its well understood electroweak production and decay mechanisms and it's high-mass of above 1.7 GeV the tau lepton is an excellent probe for physics beyond the standard model and provides clean samples for studying QCD at the 1 GeV energy level. This contribution will give a compact overview of the tau physics programme at Belle II, with a particular emphasis on decay modes with significant potential already in the upcoming first physics run.