Search for lepton flavor violating $τ\to \ell V^0$ decays at Belle
| dc.creator | The Belle Collaboration | |
| dc.creator | Abe, K. | |
| dc.date | 2007-08-24 | |
| dc.date.accessioned | 2026-07-07T08:25:22Z | |
| dc.date.available | 2026-07-07T08:25:22Z | |
| dc.description | We have searched for neutrinoless $τ$ lepton decays into $\ell$ and $V^0$, where $\ell$ stands for an electron or muon, and $V^0$ for a vector meson ($ϕ$, $ω$, $K^{*0}$ or $\bar{K}^{*0}$), using 543 fb$^{-1}$ of data collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No excess of signal events over the expected background is observed, and we set upper limits on the branching fractions in the range $(0.7 - 1.8) \times 10^{-7}$ at the 90% confidence level. These upper limits include the first results for $\ell ω$ as well as new limits that are $3.6 - 9.6$ times more restrictive than our previous results for $\ell ϕ$, $\ell K^{*0}$ and $\ell \bar{K}^{*0}$. | |
| dc.description | 6 pages, 11 figures, contributed to EPS 2007 and Lepton Photon 2007 | |
| dc.identifier | https://arxiv.org/abs/0708.3276 | |
| dc.identifier | http://arxiv.org/abs/0708.3276 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/136632 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for lepton flavor violating $τ\to \ell V^0$ decays at Belle | |
| dc.type | text |