Speaker
Andrea Giorgieri
(University of Pisa, INFN)
Description
We compute the $\Lambda$-parameter of SU($N$) Yang--Mills theories for $N=3,5,8$ using the step-scaling method. We use the gradient flow scale $t_0$ for scale setting, and we implement the step-scaling method in the twisted gradient flow scheme, a finite-volume renormalization scheme that combines twisted boundary conditions with a coupling defined via the gradient flow. By extrapolating our results for $N=3,5,8$, we also obtain the first determination of the large-$N$ $\Lambda$-parameter that does not rely on asymptotic scaling.
Authors
Andrea Giorgieri
(University of Pisa, INFN)
Dr
Claudio Bonanno
(ITP, University of Bern)
Jorge Luis Dasilva Golan
(brookhaven National Laboratory)
Dr
Margarita García Pérez
(Instituto de Fisica Teorica (IFT), UAM/CSIC)