Title: Exploring new frontiers of Quantum Chromodynamics

 

Abstract:

 

Nucleons (protons and neutrons) are known to be the building blocks of matter, 
and also known to be the bound states of quarks and gluons - the partons, whose 
dynamics is best described by Quantum Chromodynamics (QCD). One of the most 
challenging questions in physics for the past several decades and the future is to 
understand how quarks and gluons form nucleons and nuclei, and to describe their 
properties in terms of the dynamics of QCD.  Although the rich and nonlinear equation 
of motion made it very difficult, if not impossible, to solve QCD analytically, the 
asymptotic freedom makes QCD perturbation theory reliable and responsible for the most 
amazing known stories of QCD as a theory of strong interaction. In this talk, I will 
demonstrate how QCD perturbation theory can be used to describe the fundamental properties 
of nucleons, such as spin, in terms of the properties and dynamics of quarks and gluons, 
as well as the quantum many body interactions taken place in the relativistic heavy ion 
collisions. I will also discuss the future opportunities to study QCD dynamics and to 
explore the structure of the matter.