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• W3020443139 abstract "We study anomalous magnetic moments and flavor violating processes of $e$, $ensuremath{mu}$, and $ensuremath{tau}$ leptons. We use a data driven approach to investigate the implications of the present data on the parameters of a class of models, which has spin-0 scalar and spin-$1/2$ fermion fields. We compare two different cases, which has or does not have a built-in cancelation mechanism. Our findings are as following. Chiral interactions are unable to generate large enough $mathrm{ensuremath{Delta}}{a}_{e}$ and $mathrm{ensuremath{Delta}}{a}_{ensuremath{mu}}$ to accommodate the experimental results. Although sizable $mathrm{ensuremath{Delta}}{a}_{e}$ and $mathrm{ensuremath{Delta}}{a}_{ensuremath{mu}}$ can be generated from nonchiral interactions, they are not contributed from the same source. Presently, the upper limit of $ensuremath{mu}ensuremath{rightarrow}eensuremath{gamma}$ decay gives the most severe constraints on photonic penguin contributions in $ensuremath{mu}ensuremath{rightarrow}e$ transitions, but the situation may change in considering future experimental sensitivities. The $Z$-penguin diagrams can constrain chiral interaction better than photonic penguin diagrams in $ensuremath{mu}ensuremath{rightarrow}e$ transitions. In most of the parameter space, box contributions to $ensuremath{mu}ensuremath{rightarrow}3e$ decay are subleading. The present bounds on $mathrm{ensuremath{Delta}}{a}_{ensuremath{tau}}$ and ${d}_{ensuremath{tau}}$ are unable to give useful constraints on parameters. In $ensuremath{tau}ensuremath{rightarrow}e$ ($ensuremath{mu}$) transitions, the present $ensuremath{tau}ensuremath{rightarrow}eensuremath{gamma}(ensuremath{mu}ensuremath{gamma})$ upper limit constrains the photonic penguin contribution better than the $ensuremath{tau}ensuremath{rightarrow}3e$ $(3ensuremath{mu})$ upper limit, and $Z$-penguin amplitudes constrain chiral interaction better than photonic penguin amplitudes. Box contributions to $ensuremath{tau}ensuremath{rightarrow}3e$ and $ensuremath{tau}ensuremath{rightarrow}3ensuremath{mu}$ decays can sometime be comparable to $Z$-penguin contributions. The ${ensuremath{tau}}^{ensuremath{-}}ensuremath{rightarrow}{e}^{ensuremath{-}}{ensuremath{mu}}^{+}{e}^{ensuremath{-}}$ and ${ensuremath{tau}}^{ensuremath{-}}ensuremath{rightarrow}{ensuremath{mu}}^{ensuremath{-}}{e}^{+}{ensuremath{mu}}^{ensuremath{-}}$ rates are highly constrained by $ensuremath{tau}ensuremath{rightarrow}eensuremath{gamma}$, $ensuremath{mu}ensuremath{rightarrow}eensuremath{gamma}$ and $ensuremath{tau}ensuremath{rightarrow}ensuremath{mu}ensuremath{gamma}$, $ensuremath{mu}ensuremath{rightarrow}eensuremath{gamma}$ upper limits, respectively. We compare the current experimental upper limits, future sensitivities and bounds from consistency on various muon and tau LFV processes." @default.
• W3020443139 created "2020-05-01" @default.
• W3020443139 creator A5001987363 @default.
• W3020443139 date "2020-09-30" @default.
• W3020443139 modified "2023-09-29" @default.
• W3020443139 title "Data-driven study of the implications of anomalous magnetic moments and lepton flavor violating processes of <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>e</mml:mi></mml:math> , <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>μ</mml:mi></mml:math> , and <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>τ</mml:mi></mml:math>" @default.
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• W3020443139 doi "https://doi.org/10.1103/physrevd.102.055022" @default.
• W3020443139 hasPublicationYear "2020" @default.
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