Author

M. Loualidi

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Preprint Sep 2026

Neutrino mass, scalar dark matter, and collider signatures in a radiative doublet-triplet model

We explore a radiative neutrino mass model based on the topology T4-3-i, which is a one-loop completion of the Weinberg operator. We focus on its T4-3-i-C1 realization, containing an inert scalar doublet, a real scalar triplet, a Majorana fermion triplet, and a Dirac singlet fermion. An exact $Z_2$ symmetry forbids the...

I. Bamwidhi, M. Belfkir, M. Loualidi et al. · 4 citations

Preprint Aug 2026

A Novel One-loop Model for Majorana Neutrino Mass and Dark Matter

We present the first complete field-theoretic realization of the finite one-loop T4-3-i topology for Majorana neutrino mass. Here, T4-3-i denotes a one-loop realization of the Weinberg operator in which a fermion links the two external lepton--Higgs pairs. If this fermion is a Majorana singlet or triplet, the same inte...

M. Belfkir, M. Loualidi, S. Nasri · 2 citations