Search for the Invisible Decay of $\jpsi$ in $ψ(2S)\toπ+π^-J/ψ$
| dc.creator | Ablikim, M. | |
| dc.creator | Bai, J. Z. | |
| dc.date | 2007-09-29 | |
| dc.date | 2008-04-17 | |
| dc.date.accessioned | 2026-07-07T11:53:17Z | |
| dc.date.available | 2026-07-07T11:53:17Z | |
| dc.description | Using 14.0 million $ψ(2S) events collected with the BES-II detector, a search for the decay of the $\jpsi$ to an invisible final state in $\psipto$ is performed. The $\jpsi$ peak in the distribution of mass recoiling against the $π^+π^-$ is used to tag $ψ$ invisible decay. No signal is found, and an upper limit at the 90% confidence level is determined to be $1.2\times 10^{-2}$ for the ratio $\frac{{\cal B}(\jpsi\ar {invisible})}{{\cal B}(\jpsi\arμ^+μ^-)}$. This is the first search for $J/ψ$ decay to an invisible final state. | |
| dc.description | 5 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0710.0039 | |
| dc.identifier | http://arxiv.org/abs/0710.0039 | |
| dc.identifier | Phys.Rev.Lett.100:192001,2008 | |
| dc.identifier | doi:10.1103/PhysRevLett.100.192001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204486 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for the Invisible Decay of $\jpsi$ in $ψ(2S)\toπ+π^-J/ψ$ | |
| dc.type | text |