New bounds on lepton flavor violating decays of vector mesons and the Z0 boson

Abstract

We give an estimate for the upper bounds on rates of lepton flavor violating (LFV) decays M to mu(pm) + e(mp) of vector mesons M = rho0, omega, phi, J/psi, Upsilon and the Z0 boson in a model independent way, analyzing the corresponding lowest dimension effective operators. These operators also contribute to nuclear mu-e-conversion. Based on this observation and using the existing experimental limits on this LFV nuclear process, we show that the studied two-body LFV decays of vector bosons are strongly suppressed independent on the explicit realization of new physics. The upper limits on the rates of some of these decays are significantly more stringent than similar limits known in the literature. In view of these results experimental observation of the two-body LFV decays of vector bosons looks presently unrealistic.

4 pages, 1 figure

References in corpus (2)

• Extraction of alpha_s from radiative Upsilon(1S) decays
• Effective Lagrangian approach to nuclear mu-e conversion and the role of vector mesons

Cited by in corpus (11)

• Lepton flavor violating decays of vector quarkonia and of the $Z$ boson
• Lepton flavor violating quarkonium decays
• Left-Right Symmetric Models at the High-Intensity Frontier
• Search for the charged lepton flavor violating decay $J/\psi \to e\tau$
• Sensitivity potential to a light flavor-changing scalar boson with DUNE and NA64$\mu$
• Search for the lepton flavor violating decay $J/\psi \to e\mu$
• RGE effects on the LFV scale from meson decays
• The lepton flavor violating decays of vector mesons in the MRSSM
• Z lepton flavour violation as a probe for new physics at future $e^{+}{e}^{-}$ colliders
• Search for Lepton Flavor Violation in ${\rm Y}(3S)\to e^{\pm }{\mu }^{\mp }$
• Search for the charged lepton flavor violating decay $\psi (3686)\to e^{\pm }{\mu }^{\mp }$