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Haiyan Gao教授:Proton remains puzzling

发布日期:2016-04-25   点击量:

报告题目:

Proton remains puzzling

报告人:

Haiyan Gao教授

Duke University and Duke Kunshan University

邀请人:

梁作堂 教授

报告时间:

2015-12-17 18:30

报告地点:

知新楼C702 量子报告厅

报告内容提示:

Nucleons are building blocks of visible matter, and are responsible for more than 99% of the visible mass in the universe. While major progress has been made in the last two decades in understanding the proton spin puzzle discovered in the late 1980s by the European Muon Collaboration, a new proton puzzle developed in the last several years concerning the proton charge radius, which is the charge weighted size of the proton. The ultrahigh precise value of the proton charge radius determined from muonic hydrogen Lamb shift measurements is more than 5 sigma smaller than the values determined from electron-proton scattering experiments and CODATA value of the hydrogen Lamb shift measurements. In this talk I will review the latest situation concerning the proton charge radius and discuss upcoming new experiments addressing this puzzle.

报告人简介:

Haiyan Gao was born in Shanghai, China. She received her B.S. degree from Tsinghua University in 1989 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 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 structure of the nucleon, search for QCD exotics, 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 China’s National Thousand-Talent Plan professor at Tsinghua University (2012), the Chang Jiang Chair Professor at Tsinghua University, Ministry of Education of China (2009-2012); Fellow of the American Physical Society (2007); Overseas Outstanding Young Scholar Collaborative Award, National Natural Science Foundation of China (2005-2008); Outstanding Junior Investigator, Department of Energy (2000). She has published over 120 papers in peer-reviewed journals, and has given more than 250 invited conference talks, seminars and colloquia. She chaired and co-chaired many workshops and conferences, has served on many international advisory committees and panels, and a number of editorial boards of journals.

欢迎感兴趣的师生参加!

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