Abstract
In this Chapter we revisit some of the most relevant phenomenological implications of right-handed neutrinos with TeV scale masses, paying special attention to their lepton flavor violating consequences. After reviewing the experimental status of charged LFV searches, we discuss in detail the LFV radiative and three-body lepton decays in presence of right-handed neutrinos at the TeV scale.
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- 1.
We thank J. Fuster for private communication with the updated ILC perspectives.
- 2.
We will show our results for the case of a Normal Hierarchy, although similar results have been obtained for an Inverted Hierarchy.
- 3.
In the following derivation of the \(\mu \)-e suppressed scenarios, we will assume the situation of having real matrices in order to avoid potential constraints from lepton electric dipole moments.
- 4.
We actually set \(c_{\tau \mu }=0.99\) for this plot, since the \(\mu _X\) parametrization in Eq. (2.46) requests a non-singular \(Y_\nu \). Nevertheless, the results for cLFV processes are basically the same as setting \(c_{\tau \mu }=1\).
- 5.
We do not consider other lepton universality tests in view of the fact that they give similar bounds, as in the case of \(\Delta r_\pi \), or they are less constraining, like the ones involving \(\tau \) leptons [53].
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Marcano, X. (2018). Phenomenological Implications of Low Scale Seesaw Neutrinos on LFV. In: Lepton Flavor Violation from Low Scale Seesaw Neutrinos with Masses Reachable at the LHC. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-94604-7_3
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