Factorization theorem for an exclusive QCD process with endpoint divergences
by
DrZelong Liu(University of Bern)
→
Asia/Shanghai
Online
Online
Description
Abstract:
The search for new phenomena at high-energy colliders requires precise theoretical predictions of various processes. Precise calculations in perturbative QCD often suffer from the presence of large logarithmic corrections, which need to be resummed to all orders with factorization theorems. However, endpoint singularities are encountered in factorization of many exclusive QCD processes, hinting at a scale violation of simple scale separation. In this talk, I will present the first renormalized factorization theorem with endpoint divergences in soft-collinear effective theory. As an example, I will discuss the factorization and large-logarithm resummation for the b-quark induced Higgs-to-diphoton decay.
Biography:
Dr. Ze Long Liu, is currently a postdoc at University of Bern. He was awarded Ph.D. in theoretical physics at Peking University in 2016, and then employed as a postdoc at Johannes Gutenberg University of Mainz and Los Alamos National Laboratory. His research interests focus on effective field theories and collider physics, especially on soft-collinear effective theory and precision QCD calculations.