Beyond Three Neutrinos: Probing the Unknown using Current and Future Neutrino Experiments

Neutrinos are amongst the most fascinating and mysterious fundamental particles we know. Despite their incredibly weak interactions and the difficulty of observing them, they play a crucial role in shaping our understanding of the universe: from the mechanics of stellar burning to the dynamics of cosmic expansion. Over the past few decades, breakthroughs in neutrino physics have transformed these once-elusive particles into subjects of precision measurement, thanks to numerous past, present, and future experiments worldwide.

The success of these precision experiments has solidified the three-neutrino paradigm while also opening the door to an even more intriguing possibility that neutrinos may connect us to something even more mysterious. Due to their unique properties, neutrinos may communicate with, or even serve as a portal to, the "dark sector" a hypothesized realm beyond the Standard Model where dark matter, sterile neutrinos, or new fundamental forces might reside.

This talk will explore how current and future neutrino experiments are uniquely positioned to probe potential new physics beyond the Standard Model. We will discuss the advances in the field that are enabling these discoveries, examine intriguing anomalies that already hint at new physics, and provide a glimpse into the exciting future of this rapidly evolving field.