While LHC physics is entering the precision era, no fatal flaws in the standard model of particle physics have been revealed. In the years to come, direct searches for new particles will continue to play an important role. However, they will be accompanied by precision measurements of known particles and indirect searches. Using the Standard Model Effective Field Theory (SMEFT) these...
Sterile neutrinos are gauge-singlet fields that can have Majorana masses. They interact with the Standard-Model fields through Yukawa couplings and higher-dimensional gauge-invariant operators. In the framework neutrino extended Standard Model Effective Field Theory ($\nu$SMEFT), we study the effect of sterile neutrino on neutrinoless double beta decay ($0\nu\beta\beta$), displaced-vertex...