Speaker: Raman Sundrum（University of Maryland）

Moderator: Prof. ZHANG Xinmin

Time: 10:00, October 23, 2014

Place: Room C305, IHEP Main Building

Abstract:  

Our current understanding of particle physics structure will be reviewed, including evidence suggesting a very hierarchical structure in energy/mass scales, puzzling because such hierarchies are unexplained by the Standard Model theory. "Warped" extra-dimensional spacetime will be introduced as a natural extension of Relativity and Quantum Mechanics beyond the Standard Model, in which hierarchical structure emerges automatically, providing an attractive and coherent framework for particle physics. The experimental strategy to search for extra dimensions at particle colliders such as the CERN Large Hadron Collider and even higher energy machines will be described. Via the famous AdS/CFT correspondence, such extra dimensions will be shown to be a "geometrization" of the more familiar possibility of particle compositeness, in which the extra dimensions are emergent consequences of strong coupling.

About the speaker:

Raman Sundrum is Distinguished University Professor at the University of Maryland, College Park. He earned his PhD in Theoretical Particle Physics from Yale University in 1990. After postdoctoral research positions at Berkeley, Harvard, Boston University and Stanford, he began his faculty career in 2000 at the Johns Hopkins University. He moved to the University of Maryland in 2010. He is best known for co-developing the "Randall-Sundrum" scenario, based on highly curved ("warped") extra dimensions. Signals of this scenario are currently major targets of searches at the CERN Large Hadron Collider.