XEFT is a low-energy effective field theory for charm mesons and pions that provides a systematically improvable description of the X(3872) resonance. A Galilean-invariant formalism that exploits the approximate conservation of mass in the transitions D*↔Dπ was later developed. In this talk, I will introduce the Galilean-invariant XEFT and talk about our recent improvements on that by showing the calculations of the D*0D0 scattering amplitude to next-to-leading order.
报告人简介：何丽萍，2012年本科毕业于兰州大学，2015年获得兰州大学物理学硕士，2015至今在俄亥俄州立大学攻读博士学位。