Effective Lagrangian approach to nuclear mu-e conversion and the role of vector mesons

Abstract

We study nuclear mu-e conversion in the general framework of an effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We examine the impact of a specific hadronization prescription on the analysis of new physics in nuclear mu-e conversion and stress the importance of vector meson exchange between lepton and nucleon currents. A new issue of this mechanism is the presence of the strange quark vector current contribution induced by the phi meson. This allows us to extract new limits on the LFV lepton-quark effective couplings from the existing experimental data.

arXiv comment19 pages, 3 figures, to be published in Phys Rev D

References in corpus (12)

• Muon Decay and Physics Beyond the Standard Model
• Dispersion-Theoretical Analysis of the Nucleon Electromagnetic Formfactors
• Low energy analysis of the nucleon electromagnetic form factors
• Dominance of Pion-exchange in R-parity Violating Supersymmetry Contributions to Neutrinoless Double Beta Decay
• Effective chiral Lagrangians for spin-1 mesons
• Strange vector currents and the OZI-rule
• Lepton Flavor Non-Conservation
• Muon-electron conversion in strange quark sea
• Exotic muon-electron conversion in nuclei and R-parity violating supersymmetry
• B-quark mediated neutrinoless ${\mu }^{-}-e^{-}$ conversion in presence of R-parity violation
• Neutrino mediated muon--electron conversion in nuclei revisited
• Vector mesons in nuclear mu-e conversion

Cited by in corpus (12)

• Enhanced mu-e conversion in nuclei in the inverse seesaw model
• Deep inelastic $e-\tau$ and $\mu -\tau$ conversion in the NA64 experiment at the CERN SPS
• New bounds on lepton flavor violating decays of vector mesons and the Z0 boson
• Left-Right Symmetric Models at the High-Intensity Frontier
• Lepton flavor violating decays of vector mesons
• Scalar meson mediated nuclear mu-e conversion
• Limits on Lepton Flavor Violation from μ-e-conversion
• Sensitivity potential to a light flavor-changing scalar boson with DUNE and NA64$\mu$
• Bounds on lepton flavor violating physics and decays of neutral mesons from $\tau (\mu )\to 3\ell ,\ell \gamma \gamma$-decays
• Search for charged lepton flavor violation of vector mesons in BLMSSM model
• Conversions of Bound Muons: Lepton Flavour Violation from Doubly Charged Scalars
• RGE effects on the LFV scale from meson decays