Speaker
Dr
Yao Ji
Description
The B-meson light-cone distribution amplitudes (LCDAs) are matrix elements of operators involving one heavy-quark field sandwiched between the B-meson state and the vacuum. In this talk, I will present the recent developments regarding the evolution of higher-twist LCDAs as well as the renormalization of the leading-twist LCDA at the two-loop order. In particular, I will discuss how the renormalization group equations (RGEs) of higher-twist operators are completely integrable from spin chain models. I will also explain how to calculate the evolution kernel of the leading-twist LCDA using conformal symmetry.
