The Strong CP Problem - Detecting the QCD Axion with Supernovae

Explore one of particle physics' most profound open questions in this 50-minute high energy theory seminar examining the strong CP problem and potential detection methods for the QCD axion using supernovae. Begin with a comprehensive overview of the strong CP problem and discover proposed solutions based on parity and time-reversal symmetries, along with their rich phenomenology that can be investigated at present and future collider experiments. Delve into the axion solution and learn about a recent proposal for a network of gamma-ray satellites, whose construction began in 2024, that could enable axion detection in the event of a galactic supernova. Gain insights into cutting-edge research directions that bridge theoretical particle physics with observational astrophysics, presented as part of the Institute for Advanced Study's ongoing seminar series.