The 39th International Symposium on Lattice Field Theory (Lattice 2022)

On the determination of the strong QCD coupling at the Z-pole with new gradient-flow based beta-function

11 Aug 2022, 12:10

20m

CP1-HSZ/1.004 (CP1-HSZ) - HS7 (CP1-HSZ)

Oral Presentation Algorithms (including Machine Learning, Quantum Computing, Tensor Networks) Algorithms

Speaker

Chik Him (Ricky) Wong

Description

Recently we introduced a new gradient flow based beta-function which is
defined over infinite Euclidean space-time to calculate and integrate
infinitesimal scale changes in RG flows. It can be applied in high-
precision determination of the strong coupling at the Z-pole in QCD. In
this talk we will discuss the results and challenges of the method
applied to quenched QCD ( pure Yang-Mill theory) as a pilot test for application to
full QCD.

Presentation materials

presentation_111826.pdf