Search for the charged lepton flavor violating decay $\psi (3686)\to e^{\pm }{\mu }^{\mp }$

Abstract

By analyzing $(2367.0\pm 11.1)\times 10^6$ $\psi (3686)$ events collected in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=3.686\mathrm{GeV}$ with the BESIII detector at the BEPCII collider, we report the first search for the charged lepton flavor violating decay $\psi (3686)\to e^{\pm }{\mu }^{\mp }$. No signal is found. An upper limit on the branching fraction $\mathcal{B}(\psi (3686)\to e^{\pm }{\mu }^{\mp })$ is determined to be $1.4\times 10^{-8}$ at the 90\% confidence level.

arXiv comment12 pages, 4 figures

References in corpus (36)

• Observation of electron-antineutrino disappearance at Daya Bay
• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Limits and Confidence Intervals in the Presence of Nuisance Parameters
• Topcolor Assisted Technicolor
• Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
• Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• Method for detector description transformation to Unity and application in BESIII
• Charged Lepton Flavor Violation: An Experimenter's Guide
• Lepton Flavor and Number Conservation, and Physics Beyond the Standard Model
• Top quark condensation
• $\mu$-$e$ conversion in nuclei and Z${}^{\prime }$ physics
• A supersymmetry extension of the standard model with bilinear R parity violation
• Search for Lepton-Flavor-Violating tau Decays into a Lepton and a Vector Meson
• On Unitarity Based Relations Between Various Lepton Family Violating Processes
• Determination of the number of $\psi (3686)$ events taken at BESIII
• Spontaneously Broken Technicolor and the Dynamics of Virtual Vector Technimesons
• Lepton flavor violating quarkonium decays
• Interpretation of Lepton Flavor Violation
• New bounds on lepton flavor violating decays of vector mesons and the Z0 boson
• Measurement of the integrated luminosity of the data collected at 3.773 GeV by BESIII from 2021 to 2024
• Introduction to Charged Lepton Flavour Violation
• Search for the charged lepton flavor violating decay $J/\psi \to e\tau$
• Indirect constraints on lepton-flavour-violating quarkonium decays
• Search for the lepton flavor violating decay $\tau$ $\to$ 3$\mu$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Visualization for physics analysis improvement and applications in BESIII
• Observable flavor violation from spontaneous lepton number breaking
• Lepton flavor violation in the supersymmetric standard model with vectorlike leptons
• Lepton flavor violation decays of vector mesons in unparticle physics
• Search for the lepton flavor violating decay $J/\psi \to e\mu$
• Implications of a Rotating Mass Matrix
• Search for charged lepton flavor violation of vector mesons in BLMSSM model
• Experimental dataset from BESIII detector at Beijing electron positron collider
• Neutrino assisted GUT baryogenesis - revisited