Speaker
Description
Spin or internal angular momentum (AM) is a fundamental property of a particle (or a generic system), and is of quantum nature. As is known to all, spin is closely related to both quantum statistics for particle distributions (e.g. the Fermi-Dirac distributions for fermions) and the Pauli exclusion principle, laying down the basic foundation for atomic structures and the evolution of the Universe. A central question in high-energy spin physics is that: How does the spin of a nucleon (or a generic spin-$1/2$ hadron) arise from the spins and orbital motions of its internal constituents? In this talk, I will discuss the spin structure of a nucleon moving with arbitrary motion in QCD in terms of its relativistic spatial distributions in different frames, and compare our results with the experimental and lattice QCD data.
