IAS Physics Group Meeting

Abstract: I will review the experimental evidence that we have accumulated on physics beyond the Standard Model in the last two decades and draw conclusions on how to move forward. The data point to a scale of new physics far removed from what we can probe at colliders. This motivates broadening the ways in which we probe new theories beyond the Standard Model. In this context I will focus on the motivation and detection of axion dark matter and of primordial high-frequency gravitational waves. I will discuss the status of the two fields, new ideas to probe orders of magnitude of new parameter space and in some cases no-go theorems that show that some signals will forever be out of reach.