Abstract: The notion of symmetries has been generalized drastically in recent years. These generalized global symmetries have shown to be extremely powerful in deepening our understanding of QFT. The appearance and usage of generalized global symmetries in particle physics are yet to be explored and this talk will provide one such story. In this talk, I will show that the SM supplemented with an extra U(1) gauge group can possess non-invertible global symmetries and these new symmetries can protect the neutrino mass operator from being generated. An exponentially small neutrino mass can then be induced by a non-perturbative violation of non-invertible symmetry by UV monopoles. I will discuss two theories, one of which has Dirac neutrino masses, and the other Majorana masses. If time permits, TeV-scale phenomenology will be discussed.
Zoom link: https://uci.zoom.us/j/99120282750