Amplitude analysis of tau -> 3pi at Belle (II)
Category: Talk, Visibility: Public
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| Authors | Stefan Wallner |
|---|---|
| Date | May 28, 2024 |
| Belle II Number | BELLE2-TALK-CONF-2024-064 |
| Abstract | We present a partial-wave analysis of $\tau^-\to \pi^-\pi^-\pi^+ \nu_\tau$ decays using the world`s largest sample of these decays from the Belle experiment at KEK, Japan. We discuss the employed covariant tensor formalism and the treatment of large incoherent backgrounds in our sample. We give preliminary results on light-meson resonances appearing in the $\pi^-\pi^-\pi^+$ system, including $a_1(1420)$, and in the $\pi^-\pi^+$ subsystem, measured using the so-called freed-isobar method; and we give prospects for measurements at Belle II. |
| Conference | International Workshop on Partial Wave Analyses and Advanced Tools for Hadron Spectroscopy |
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BELLE2-TALK-CONF-2024-064.pdf (versions: 1)
latest upload: 2024-12-02