Kavli Affiliate: Wei Gao
| First 5 Authors: BESIII Collaboration, BESIII Collaboration, , ,
| Summary:
The lepton number violation decay $ωto π^+ π^+ e^-e^- +c.c.$ is searched for via $J/ψto ωη$ using a data sample of $(1.0087 pm 0.0044) times 10^10$ $J/ψ$ events collected by the BESIII detector at the BEPCII collider. No significant signal is observed, and the upper limit on the branching fraction of $ωto π^+ π^+ e^-e^- +c.c.$ at the 90% confidence level is determined for the first time to be $2.8 times 10^-6$.
| Search Query: arXiv Query: search_query=au:Gao&id_list=&start=0&max_results=10