13-24 January 2020
Mainz Institute for Theoretical Physics, Johannes Gutenberg University
Europe/Berlin timezone

Renormalization of B-meson light-cone distribition amplitudes

14 Jan 2020, 10:00
1h
02.430 (Mainz Institute for Theoretical Physics, Johannes Gutenberg University)

02.430

Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Staudingerweg 9 / 2nd floor, 55128 Mainz

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.

Presentation Materials