arXiv subjects

A. Darricau

Publications and source records attributed to A. Darricau.

3 recordsLinked to original sources

arXiv2026

Revisiting cLFV in "T1-2-A" scotogenic models: asymmetries in three-body lepton decays

We consider a well-motivated class of scotogenic models (the "T1-2-A" variant), and carry out a comprehensive reassessment of its prospects regarding charged lepton flavour violating (cLFV) observables. Aiming only at explaining neutrino oscillation data and putting forward a viable dark matter candidate, a thorough exploration of the model's parameter space suggests that one can have sizeable rates for cLFV observables, especially in rare muon transitions. We have further considered the role of parity and time-reversal asymmetries for cLFV 3-body decays, $\ell_α^+ \to \ell_β^+ \ell_γ^+ \ell_δ^-$, which can be potentially studied in association with polarised muon and tau decays. The new set of observables offers further complementarity information on the scotogenic model under consideration, and possible means of testing it.

hep-ph↗

arXiv2025

Flavour and precision probes of a class of scotogenic models

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. For the case of a ``T1-2-A'' variant, we carry out a full computation of the next-to-leading order corrections to leptonic Higgs and $Z$-boson decays. We revisit previously drawn conclusions on operator dominance and constraints on the parameter space in view of the evolution regarding $Δa_μ$. Finally, we consider the role of $H \to μμ$ decays (and other flavour conserving Higgs decays), as well as precision observables in probing this class of models at future colliders.

hep-ph↗

arXiv2025

Flavour and precision probes of a class of scotogenic models

We address the phenomenological impact of a well-motivated class of scotogenic models regarding flavour and electroweak precision observables. In particular, and for the case of a ``T1-2-A'' variant, we carry out a full computation of the next-to-leading order corrections to leptonic Higgs and $Z$-boson decays. In view of the evolution in the tension between theory and observation regarding the anomalous magnetic moment of the muon, we revisit previously drawn conclusions on operator dominance and constraints on the parameter space. Finally, we consider the role of $H \to μμ$ decays (and other flavour conserving Higgs decays) in probing this class of models at future colliders.

hep-ph↗