Search for the charged lepton flavor violating decay J/ψ→eτ
ddc:530
Muon
Number
FOS: Physical sciences
530
01 natural sciences
High Energy Physics - Experiment
Subatomär fysik
High Energy Physics - Experiment (hep-ex)
Astronomi, astrofysik och kosmologi
Subatomic Physics
0103 physical sciences
epton flavor violating decay, electron-positron collider, J/Psi
Astronomy, Astrophysics and Cosmology
info:eu-repo/classification/ddc/530
Higgs
DOI:
10.1103/physrevd.103.112007
Publication Date:
2021-06-23T16:37:43Z
AUTHORS (516)
ABSTRACT
A search for the charged lepton flavor violating decay $J/��\to e^{\pm}��^{\mp}$ with $��^{\mp} \to ��^{\mp}��^0��_��$ is performed with about $10$ billion $J/ ��$ events collected with the BESIII detector at the BEPCII. No significant signal is observed, and an upper limit is set on the branching fraction $\mathcal{B}(J/��\to e^{\pm}��^{\mp})<7.5\times10^{-8}$ at the 90$\%$ confidence level. This improves the previously published limit by two orders of magnitude.<br/>9 pages, 4 figures, 2 tables<br/>
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