Author

Giorgio Leone

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Preprint Sep 2026

XENONnT $pp$-Dominated Solar Neutrinos Constrain the $\nu_1$ Pseudo-Dirac Splitting

XENONnT has measured a low-energy solar-neutrino signal dominated by $pp$ neutrinos. At these energies, an ultra-small pseudo-Dirac mass-squared splitting induces detectable active-sterile oscillations over the Sun--Earth baseline. We study pseudo-Dirac oscillations of the first mass eigenstate, compute the resulting m...

Giorgio Leone · 2 citations

Preprint Aug 2026

TeV-scale leptogenesis in a parity symmetric neutrino mass model

We study leptogenesis via out-of-equilibrium decays of right-handed neutrinos in a parity symmetric extension of the Standard Model with gauge group $SU(3)_c \times SU(2)_L \times SU(2)_R \times U(1)_X$, spontaneously broken to the Standard Model gauge group at a scale $v_R$. We focus on the minimal Higgs realization,...

Keisuke Harigaya, Giorgio Leone · 0 citations