Measurement of the presence of $a_1(1420)$ and $\omega(782)$ in $\tau^{-}\to \pi^{-}\pi^{+}\pi^{-}\nu_{\tau}$ at Belle
We present preliminary results of a partial-wave analysis of \tau^-\to\pi^-\pi^-\pi^+\nu_\tau τ − → π − π − π + ν τ using data from the Belle experiment at the KEKB \mathrm{e}^+\mathrm{e}^- e + e − collider. We validate our model with a model-independent analysis. We see the \mathrm{a}_1(1420) a 1 (...
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| Published in | SciPost physics proceedings no. 17; p. 008 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
SciPost
23.07.2025
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| Online Access | Get full text |
| ISSN | 2666-4003 2666-4003 |
| DOI | 10.21468/SciPostPhysProc.17.008 |
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| Abstract | We present preliminary results of a partial-wave analysis of \tau^-\to\pi^-\pi^-\pi^+\nu_\tau τ − → π − π − π + ν τ using data from the Belle experiment at the KEKB \mathrm{e}^+\mathrm{e}^- e + e − collider. We validate our model with a model-independent analysis. We see the \mathrm{a}_1(1420) a 1 ( 1420 ) and a G-parity-violating 1^-[\omega(782)\pi]_\mathrm{P} 1 − [ ω ( 782 ) π ] 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 τ . |
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| AbstractList | We present preliminary results of a partial-wave analysis of \tau^-\to\pi^-\pi^-\pi^+\nu_\tau τ − → π − π − π + ν τ using data from the Belle experiment at the KEKB \mathrm{e}^+\mathrm{e}^- e + e − collider. We validate our model with a model-independent analysis. We see the \mathrm{a}_1(1420) a 1 ( 1420 ) and a G-parity-violating 1^-[\omega(782)\pi]_\mathrm{P} 1 − [ ω ( 782 ) π ] 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 τ . 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 $\tau$. |
| ArticleNumber | 008 |
| Author | Greenwald, Daniel Rabusov, Andrei Paul, Stephan |
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| Cites_doi | 10.1007/BF01245809 10.22323/1.414.1034 10.1393/ncc/i2024-24154-4 10.1051/epjconf/201921203010 10.1103/PhysRevD.91.094015 10.1093/ptep/ptaa104 10.48550/arXiv.physics/0703039 10.1016/0370-2693(78)90181-8 10.1103/PhysRevD.61.012002 10.1093/ptep/ptz106 10.1103/PhysRevD.98.092003 10.1103/PhysRevLett.115.082001 10.1016/S0168-9002(01)02013-7 10.1016/S0168-9002(02)01771-0 10.48550/arXiv.2305.11711 10.1088/1748-0221/16/06/P06016 10.1007/BF01571299 |
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| Title | Measurement of the presence of $a_1(1420)$ and $\omega(782)$ in $\tau^{-}\to \pi^{-}\pi^{+}\pi^{-}\nu_{\tau}$ at Belle |
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