Speaker
Xuan-He Wang
Description
The electromagnetic polarizability is an important property of nucleon. It describes the response of a nucleon when it is placed in an external electric or magnetic field. The polarizability can be extracted from the real or virtual Compton scattering process $\gamma N \to \gamma N$. We develop a method to calculate the the Compton scattering matrix elements of nucleon from a 4-point correlation function on the lattice. Then we show that the electromagnetic polarizability can be extracted from the lattice data subsequently.
Primary author
Co-authors
Xu Feng
(Peking University)
Luchang Jin
