Author

P. Bolton

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Preprint Sep 2026

Displaced Signals from Long-lived Particles in Neutrinoless Double Beta Decay

Much of the literature on neutrinoless double beta ($0\nu\beta\beta$) decay with light new-physics mediators focuses on invisible missing energy. We investigate the scenario in which a massive Majoron-like particle $\phi$ is produced on-shell during $0\nu\beta\beta$ decay and subsequently decays into visible final stat...

P. Bolton, Noor-Inès Boudjema, F. Deppisch et al. · 2 citations

Preprint Sep 2026

Probing $\nu$SMEFT at Belle II with displaced dilepton vertices

The existence of right-handed (RH) neutrinos is strongly motivated by the observation of small neutrino masses and as a means to shed light on the origin of parity violation in the Standard Model (SM). Experimental searches for the corresponding mass eigenstates, referred to as heavy neutral leptons (HNLs), have been c...

P. Bolton, Fabian Esser, Lukáš Gráf et al. · 1 citation