题目：The 5th Force: from the Higgs field to beyond

报告人：Andrei Gritsan

邀请人：肖朦

时间：2024年5月7日（周二）15:30

地点：紫金港校区海纳苑8幢215报告厅

摘要：

The quantum theory of the matter and energy that surrounds us, the standard model of particle physics, has been hugely successful in describing both the present microscopic world and its evolution in the early moments of our Universe. Yet, it appears to be incomplete, as it cannot explain several puzzles of our Universe. The last major breakthrough in completing the full picture of the standard model was the discovery of the Higgs boson, measured to have the quantum numbers of the empty space, or vacuum. It became a clear indication of the Higgs field which permeates all of space. It also appears to be a force carrier between anything with mass, which may open a window to the world beyond the current knowledge. We will review the evolution of our knowledge from the discovery of the Higgs boson to ourpresent understanding of its properties, and will examine future directions in the quest for a unified quantum theory.  

个人简介：

Andrei Gritsan is an American physicist who has been a Professor at the Johns Hopkins University since 2005. He is a Fellow of the American Physical Society selected for his significant contributions to the discovery and to the characterization of the Higgs Boson at the CMS experiment, and for significant contributions to the measurement of CKM parameter sin2alpha at the BABAR experiment prior to that, when he worked at the Lawrence Berkeley Lab. He received his Ph.D. from the University of Colorado at Boulder in 2000, where he reported observation of the first clear gluonic penguin decays on the CLEO experiment. Prof. Gritsan has received the U.S. National Science Foundation Career Award, Alfred P. Sloan Foundation Research Fellowship, and the LHC Physics Center at Fermilab Distinguished Researcher Award.