Oct 2017 - Sep 2018

Minimal extensions of the SM with sterile neutrinos: impact on cLFV and LNV processes

by Valentina de Romeri (Universidad de Valencia)

OC218 (IPPP)




Massive neutrinos and their mixings provide the first evidence of flavour violation in the leptonic sector and open a whole window on many new processes, within reach of high-energy and high-intensity facilities. An observation of charged lepton flavour violation (cLFV) processes will  undoubtedly point towards the existence of New Physics. Analogously, if observed, lepton number violating (LNV) processes are a clear sign of New Physics which indirectly hint for a Majorana nature of neutrinos.  In this talk  I will firstly briefly review the experimental status of cLFV searches. Then I will discuss the potential of minimal extensions of the Standard Model (SM) via heavy sterile fermions concerning an extensive array of observables. Among others, I will discuss cLFV processes like three-body decays, nuclear-assisted processes and rare LFV Z decays and LNV processes like “neutrinoless” meson and tau decays.

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