2022年5月
Search for charged lepton flavor violating decays of ϒ (1S)
Journal of High Energy Physics
- 巻
- 2022
- 号
- 5
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/JHEP05(2022)095
We present a search for the charged lepton-flavor-violating decays ϒ(1S) →ℓ±ℓ′∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ±ℓ′∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected by the Belle detector at the KEKB collider. This search uses ϒ(1S) mesons produced in ϒ(2S) → π+π− ϒ(1S) transitions. We do not find any significant signal, so we provide upper limits on the branching fractions at the 90% confidence level. [Figure not available: see fulltext.]
- リンク情報
- ID情報
-
- DOI : 10.1007/JHEP05(2022)095
- eISSN : 1029-8479
- SCOPUS ID : 85132159524