SciPost Submission Page
Search for charged lepton flavor violation in $J/\psi$ decays at BESIII
by Xudong Yu
Submission summary
| Authors (as registered SciPost users): | Xudong Yu |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202405_00022v1 (pdf) |
| Date accepted: | 2024-12-04 |
| Date submitted: | 2024-05-15 04:12 |
| Submitted by: | Yu, Xudong |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 17th International Workshop on Tau Lepton Physics (TAU2023) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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Abstract
In the Standard Model, charged lepton flavor violation (CLFV) is heavily suppressed by tiny neutrino mass, while many theoretical models can enhance CLFV effects up to a detectable level. The observation of any CLFV process would be a clear signal of new physics beyond SM. BESIII experiment collected 10 billion $J/\psi$ data and searched for CLFV processes $J/\psi\to e\tau$ and $e\mu$. The upper limits at the 90\% confidence level are determined to be $\mathcal{B}(J/\psi\to e\tau)<7.5\times 10^{-8}$ and $\mathcal{B}(J/\psi\to e\mu)<4.5\times 10^{-9}$, respectively, which are the most stringent constraints in the heavy quarkonium system.
Current status:
Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report #1 by Swagato Banerjee (Referee 1) on 2024-11-22 (Invited Report)
Report
Upper limits on J/psi to e tau and e mu final states are obtained at the 10^-8 and 10^-9 level with 10 billion J/psi data, which are most stringent constraints in the heavy quarkonium system.
Recommendation
Publish (surpasses expectations and criteria for this Journal; among top 10%)
Author: Xudong Yu on 2024-11-22 [id 4981]
(in reply to Report 1 by Swagato Banerjee on 2024-11-22)Thanks for your positive comments.