Physics Colloquia

For decades the leading attempts to find new fundamental particles have been large undertakings, requiring decades of effort, thousands of physicists, and billions of dollars. More recently, however, new ideas have led to novel opportunities for discovery with relatively fast, small, and cheap experiments. In this talk, I will explain how this new approach came to be and describe FASER, which is under construction now to look for long-lived particles, probe the dark sector of the universe, and detect collider neutrinos for the first time.