Study of conversion decays phi->etae+e-, eta->e+e-g and eta->pi+pi-e+e- at CMD-2
| dc.creator | 2 collaboration | |
| dc.date | 2000-12-16 | |
| dc.date.accessioned | 2026-07-07T10:32:06Z | |
| dc.date.available | 2026-07-07T10:32:06Z | |
| dc.description | Using 15.1 pb^{-1} of data collected by CMD-2 in the phi-meson energy range, the branching ratios of the following conversion decays have been measured: B(ϕ\toηe^+e^-) = (1.14\pm0.10\pm0.06)\cdot10^{-4}, B(η\to e^+e^-γ) = (7.10\pm0.64\pm0.46)\cdot10^{-3}, B(η\toπ^+π^-e^+e^-) = (3.7^{+2.5}_{-1.8}\pm0.3)\cdot10^{-4}. The upper limits for the following rare conversion decays have been obtained at the 90% confidence level: B(ϕ\toημ^+μ^-) < 9.4\cdot10^{-6}, B(η\to e^+e^-e^+e^-) < 6.9\cdot10^{-5}. | |
| dc.description | 16 pages, 7 PostScript figures. To be published in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0012039 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0012039 | |
| dc.identifier | Phys.Lett.B501:191-199,2001 | |
| dc.identifier | doi:10.1016/S0370-2693(01)00123-X | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178641 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of conversion decays phi->etae+e-, eta->e+e-g and eta->pi+pi-e+e- at CMD-2 | |
| dc.type | text |