Speaker
Dr
Alberto Ramos
(CERN)
Description
A fundamental step in the ALPHA collaboration efforts to
determine the fundamental parameters of $N_f=3$ QCD at the electroweak
scale in terms of hadronic quantities is the connection of an
intermediate scale $\sim 4{\rm GeV}$ with a hadronic scale. In this talk we will
show that using the Gradient Flow running coupling this task can be
achieved with a very high precision. Our analysis will pay special
attention to the continuum limit of flow quantities and reach a
precision below 2% in the scale factor for a change of the coupling
from $g^2=13$ to $g^2=2.5$.
Authors
Dr
Alberto Ramos
(CERN)
Dr
Mattia Dalla Brida
(DESY - Zeuthen)
Dr
Patrick Fritzsch
(IFT UAM/CSIC)
Prof.
Rainer Sommer
(NIC @ DESY)
Dr
Stefan Sint
(Trinity college Dublin)
Dr
Tomasz Korzec
(Bergische Universität Wuppertal)
