Refine
Year of publication
Language
- English (1397)
Has Fulltext
- yes (1397)
Is part of the Bibliography
- no (1397)
Keywords
- Heavy Ion Experiments (21)
- BESIII (19)
- e +-e − Experiments (15)
- Branching fraction (11)
- Hadron-Hadron Scattering (11)
- Hadron-Hadron scattering (experiments) (11)
- LHC (9)
- Particle and Resonance Production (9)
- Charm Physics (6)
- Heavy-ion collision (6)
Institute
- Physik (1341)
- Frankfurt Institute for Advanced Studies (FIAS) (991)
- Informatik (908)
- Informatik und Mathematik (3)
- Geowissenschaften (2)
- Hochschulrechenzentrum (2)
- Biochemie und Chemie (1)
- Biodiversität und Klima Forschungszentrum (BiK-F) (1)
- Biowissenschaften (1)
- Institut für Ökologie, Evolution und Diversität (1)
Using a data sample of 448.1×106 ψ(3686) events collected at s√= 3.686 GeV with the BESIII detector at the BEPCII, we search for the rare decay J/ψ→ϕe+e− via ψ(3686)→π+π−J/ψ. No signal events are observed and the upper limit on the branching fraction is set to be B(J/ψ→ϕe+e−)<1.2×10−7 at the 90\% confidence level, which is still about one order of magnitude higher than the Standard Model prediction.