TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.17.008
TI  - Measurement of the presence of $a_1(1420)$ and $\omega(782)$ in $\tau^{-}\to \pi^{-}\pi^{+}\pi^{-}\nu_{\tau}$ at Belle
PY  - 2025/07/23
UR  - https://www.scipost.org/SciPostPhysProc.17.008
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 17
SP  - 008
A1  - Rabusov, Andrei
AU  - Greenwald, Daniel
AU  - Paul, Stephan
AB  - We present preliminary results of a partial-wave analysis of $\tau^-\to\pi^-\pi^-\pi^+\nu_\tau$ using data from the Belle experiment at the KEKB $\mathrm{e}^+\mathrm{e}^-$ collider. We validate our model with a model-independent analysis. We see the $\mathrm{a}_1(1420)$ and a G-parity-violating $1^-[\omega(782)\pi]_\mathrm{P}$ wave in tauon decays. Our results will improve models used in simulation studies necessary for measuring the electric and magnetic dipole moments and Michel parameters of the $\tau$.
ER  -

@Article{10.21468/SciPostPhysProc.17.008,
	title={{Measurement of the presence of $a_1(1420)$ and $\omega(782)$ in $\tau^{-}\to \pi^{-}\pi^{+}\pi^{-}\nu_{\tau}$ at Belle}},
	author={Andrei Rabusov and Daniel Greenwald and Stephan Paul},
	journal={SciPost Phys. Proc.},
	pages={008},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.17.008},
	url={https://scipost.org/10.21468/SciPostPhysProc.17.008},
}