Speaker
Paul Feichtinger
(Austrian Academy of Sciences)
Description
Improved measurements of the standard model properties of the tau provide indirect searches for beyond-the-standard-model physics. The low-background samples of $e^+e^- \to \tau^+\tau^-$ events collected by Belle and Belle II allow such measurements. We present a test of the V-A structure of $\tau \to \mu \nu \nu$ decays through the determination of the Michel parameters. In addition, latest studies of lepton universality in tau decays are presented.
Name of collaboration or list of co-authors
Belle and Belle II
Primary authors
Paul Feichtinger
(Austrian Academy of Sciences)
Sven Vahsen
(University of Hawaii (US))
