Göttingen 2025 – scientific programme

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T: Fachverband Teilchenphysik

T 9: Flavour Physics I

T 9.2: Talk

Monday, March 31, 2025, 17:00–17:15, VG 1.104

CP violation in τ → K⁰ h (≥ 0π⁰) ν_τ decays at Belle * — •Katarina Dugic^1,2, Daniel Greenwald¹, and Stephan Paul¹ — ¹Technical University Munich — ²Max Planck Institute for Physics

In 2012, Babar measured a CP-violating decay-rate asymmetry in τ → K_S π (≥ 0 π⁰) ν_τ that deviates from the standard-model prediction by 2.8σ. We present studies for measuring this asymmetry in τ → K⁰ h (≥ 0π⁰) ν_τ using data from the Belle experiment.
*Funded by the DFG under Germany’s Excellence Strategy - EXC2094 - 390783311 and BMBF Verbundforschung (05H21WOKBA BELLE2).

Keywords: CP violation; tau decays; Belle