# Natural suppression of symmetry violation in gauge theories: Muon- and electron-lepton-number nonconservation

@article{Lee1977NaturalSO,
title={Natural suppression of symmetry violation in gauge theories: Muon- and electron-lepton-number nonconservation},
author={Benjamin W. Lee and R. Shrock},
journal={Physical Review D},
year={1977},
volume={16},
pages={1444-1473}
}
• Published 1977
• Physics
• Physical Review D
We analyze the circumstances under which the violations of an approximate symmetry in a unified gauge theory of weak interactions are naturally suppressed; in particular, we investigate approximate muon- and electron-type lepton-number conservation as an example of such a symmetry. Extending earlier work, we propose a unified treatment of this symmetry together with strangeness conservation by the weak neutral current and $\mathrm{CP}$ invariance. The rate for the decay $\ensuremath{\mu… Expand #### Figures from this paper Transition magnetic moments of Majorana neutrinos in supersymmetry without R-parity in light of neutrino oscillations • Physics • 2006 The transition magnetic moments of Majorana neutrinos${\ensuremath{\mu}}_{{\ensuremath{\nu}}_{ij}}$($ij=e\ensuremath{\mu}$,$e\ensuremath{\tau}$,$\ensuremath{\mu}\ensuremath{\tau}$) are calculatedExpand Muon $$g-2$$g-2 through a flavor structure on soft SUSY terms • Physics • 2015 In this work we analyze the possibility to explain the muon anomalous magnetic moment discrepancy within theory and experiment through lepton-flavor violation processes. We propose a flavor extendedExpand Unified SU(4) theory for the R D (*) and R K (*) anomalies • Physics • 2020 We propose a chiral Pati-Salam theory based on the gauge group$SU(4)_C\times SU(2)_L\times SU(2)_R$. The left-handed quarks and leptons are unified into a fundamental representation of$SU(4)_C$,Expand Charged Lepton Flavor Violation in a class of Radiative Neutrino Mass Generation Models • Physics • 2018 We investigate charged lepton flavor violating processes$\mu\rightarrow e \gamma$,$\mu\rightarrow e e \overline{e}$and$\mu-e$conversion in nuclei for a class of three-loop radiative neutrinoExpand Effective approach to lepton observables: the seesaw case • Physics • 2018 In the absence of direct evidence of new physics, any ultraviolet theory can be reduced to its specific set of low-energy effective operators. As a case study, we derive the effective field theoryExpand Sensitivity study of searching for τ− → γμ− at HIEPA • Physics • 2016 The charged lepton flavor violation process is a clean and sensitive probe of new physics beyond the Standard Model. A sensitivity study is performed to the process \(\tau ^- \rightarrow \gamma \muExpand Lepton Flavor Violation in Predictive SUSY-GUT Models • Physics • 2008 There have been many theoretical models constructed that aim to explain the neutrino masses and mixing patterns. While many of the models will be eliminated once more accurate determinations of theExpand Dynamical Zero in Antineutrino_e -- Electron Scattering and the Neutrino Magnetic Moment • Physics • 2004 The Standard Model differential cross section for$\bar{\nu}_e-e^-$elastic scattering vanishes exactly, at lowest order, for forward electrons and incident$\bar{\nu}_e$energy close to the restExpand Effects of physics beyond the standard model on the neutrino charge radius: an effective Lagrangian approach • Physics • 2008 In this work, we look for possible new physics effects on the electromagnetic charge and anapole form factors,${f}_{Q}({q}^{2})$and${f}_{A}({q}^{2})\$, for a massless Dirac neutrino, when theseExpand
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