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Cited by 503

The DOI matches its Crossref record; 166 of the 166 references it cites were found in a registry or an index.

A call for new physics: The muon anomalous magnetic moment and lepton flavor violation

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Lindner, Manfred, Platscher, Moritz, Queiroz, Farinaldo S.·2018·Physics Reports
DOI 10.1016/j.physrep.2017.12.001
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Abstract

Abstract We review how the muon anomalous magnetic moment ( g − 2 ) and the quest for lepton flavor violation are intimately correlated. Indeed the decay μ → e γ is induced by the same amplitude for different choices of in- and outgoing leptons. In this work, we try to address some intriguing questions such as: Which hierarchy in the charged lepton sector one should have in order to reconcile possible signals coming simultaneously from g − 2 and lepton flavor violation? What can we learn if the g − 2 anomaly is confirmed by the upcoming flagship experiments at FERMILAB and J-PARC, and no signal is seen in the decay μ → e γ in the foreseeable future? On the other hand, if the μ → e γ decay is seen in the upcoming years, do we need to necessarily observe a signal also in g − 2 ? . In this attempt, we generally study the correlation between these observables in a detailed analysis of simplified models. We derive master integrals and fully analytical and exact expressions for both phenomena, and address other flavor violating signals. We investigate under which conditions the observations can be made compatible and discuss their implications. Lastly, we discuss in this context several extensions of the SM, such as the Minimal Supersymmetric Standard Model, Left–Right symmetric model, B – L model, scotogenic model, two Higgs doublet model, Zee–Babu model, 331 model, and L μ − L τ , dark photon, seesaw models type I, II and III, and also address the interplay with μ → e e e decay and μ – e conversion.

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Metadata

Authors
Lindner, M., Platscher, M., & Queiroz, F. S.
Venue
Physics Reports
Publisher
Elsevier BV
Published
2018-02
Volume
731
Pages
1-82
ISSN
0370-1573 (ISSN-L)
DOI
10.1016/j.physrep.2017.12.001
OpenAlex
W2543917711
Cited by
503
References
166
FWCI
38.56
Type
journal article
Language
en
Open access
bronze

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