Particle Physics

Tsung-Dao Lee (李政道), Member (1951–53, 1957–58) and Faculty (1960–62) in the Institute’s School of Mathematics/Natural Sciences, died on August 4. During his time at IAS, Lee was awarded the Nobel Prize in Physics alongside his Institute colleague Chen-Ning Yang (楊振寧) for revolutionary work on parity violation which fundamentally changed our understanding of the laws of physics.

This June, around 230 physicists and mathematicians gathered at IAS to discuss the latest developments in the field of scattering amplitudes. The roots of the Amplitudes conference, held annually since 2009, can be found in seminal papers by Edward Witten, Professor Emeritus in the School of Natural Sciences, and his collaborators.

Sebastian Mizera, Member in the School of Natural Sciences, and his collaborators, have used computational algebraic geometry to study predictions for particle physics experiments, such as those at the Large Hadron Collider (LHC). The team’s results were published in Physical Review Letters in March. 

At a workshop held at IAS in March, Sebastian Mizera, Member in the School of Natural Sciences, "met with fellow S-matrix enthusiasts. Inspired by recent progress, they continue to seek more universal rules that govern all S-matrices. [...] They focus on observations, striving to discover truths that will endure even when the shape of future theories remains uncertain."

In an article for Quanta, Isabel Garcia Garcia, past Member in the School of Natural Sciences (2022–23), discusses the latent possibilities of LISA, the first dedicated space-based gravitational wave observatory, currently scheduled to launch in the 2030s.

A two-week “marathon” workshop on S-matrix theory, organized by scholars from the School of Natural Sciences, brought together more than 40 cosmologists, particle theorists, and mathematicians from around the world to discuss future directions in the field. 

Edward Witten, Professor Emeritus in the School of Natural Sciences, has been awarded a Benjamin Lee Professorship by the Asia Pacific Center for Theoretical Physics (APCTP). The professorship was named for prominent South Korean physicist Benjamin Whisoh Lee, a frequent IAS Member.

The European Research Council (ERC) has awarded a Synergy Grant of €10 million to a project led by Nima Arkani- Hamed, Professor in the School of Natural Sciences, and past IAS Members. The team aims to create a new mathematical language to describe physical phenomena on all scales.

Prospects in Theoretical Physics (PiTP), an intensive two-week summer program for advanced graduate students and postdoctoral scholars, took place from July 10–21 this year, the first meeting since COVID-19 struck in 2020.