ILCACseminar Wednesday, April 14 (2021) at 13:30 GMT at ZOOM
https://us02web.zoom.us/j/81572103194?pwd=eE1QVWZFc1hWbWszZ2N0RW1iWHFBZz09

Speaker:
Alexandre Deur
JLab

Title:
The QCD running coupling

Abstract:
We will discuss the QCD running coupling α_s, starting from its
definition and meaning in the QCD's perturbative domain. We will
then show how the definition of αs can be extended into the 
nonperturbative domain. Such extension is not unique and we will
focus on the extension based on the concept of effective charges.
This particular extension is especially useful as it permits us 
to measure α_s in the non-perturbative domain, and to compute it 
in the Light-Cone Holographic QCD (LFHQCD) approach. We will
briefly describe the calculation, compare its result to low energy 
α_s measurements, and discuss how this α_s from LFHQCD permits to 
determine the hadron mass spectrum using solely Λ_QCD as input. 
Finally, we will compare αs from LFHQCD to other non-perturbative 
determinations of α_s.

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