Haiyan Gao: The Proton Charge Radius Puzzle | Duke Kunshan University

Haiyan Gao: The Proton Charge Radius Puzzle

E.g., 06/16/2022
E.g., 06/16/2022
17:30 to 18:30
Academic Building 1087


Prof. Haiyan Gao, Henry Newson Professor of Physics, Duke University; Vice Chancellor for Academic Affairs, Duke Kunshan University


Nucleons (protons and neutrons) are building blocks of visible matter, and are responsible for more than 99% of the visible mass in the universe. However, not only do we know little about its internal structure, but there are also a number of puzzles surrounding the properties of protons such as its spin, mass and charge radius, which is the charge distribution weighted size of the proton. In this talk I will introduce the proton spin mass puzzles first briefly and then focus on the proton charge radius puzzle and the PRad experiment at Jefferson Lab in the United States. I will also provide some future outlooks concerning the proton mass and spin puzzles.


Haiyan Gao is the Henry Newson Professor of Physics at Duke University, and from 2015 the Vice Chancellor for Academic Affairs at Duke Kunshan University, China. Born in Shanghai, China. Haiyan Gao received her B.S. degree from Tsinghua University in 1988 and Ph.D. in Physics from Caltech in 1994. She was a Postdoctoral Research Associate at the University of Illinois, Urbana-Champaign from 1994-1996 and then joined the scientific staff at the Argonne National Laboratory in 1996. She became an Assistant Professor of Physics at MIT in 1997 and was promoted to Associate Professor in 2002. She joined the Physics faculty of Duke in 2002 and became a full Professor in 2008. She was named Henry Newson Professor of Physics in 2012 at Duke. From 2006-2009, she was the Associate Chair for Teaching in Physics at Duke, and was the Chair of the department from 2011 to 2014. In January 2015, she became the Vice Chancellor for Academic Affairs at the Duke Kunshan University.

Her research interests cover the structure of the nucleon, search for Quantum Chromodynamics exotic states, fundamental symmetry studies at low energy to search for new physics beyond the Standard Model of electroweak interactions, and the developments of polarized targets. She received a number of awards including being elected as a Fellow of the American Physical Society in 2007 and winning the Outstanding Junior Investigator Award by the US Department of Energy in 2000. She was named as one of the China’s National Thousand-Talent Program professors at Tsinghua University in 2012, and won the Overseas Outstanding Young Scholar Collaborative Award by the National Natural Science Foundation of China in 2005. She has published many papers in peer-reviewed journals, and has given numerous invited conference talks, seminars and colloquia worldwide. She chaired and co-chaired many workshops and conferences, and she has served on many international advisory committees and panels, professional society committees, and editorial boards of journals.

This event is open to all. For any queries email yg73@duke.edu or call 3665 7149.