# The 34th International Symposium on Lattice Field Theory (Lattice 2016)

24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

## The Nf=3 gradient flow coupling running from 4GeV to 200MeV

25 Jul 2016, 17:05
20m
Building 67 Room 1007 (Highfield Campus, University of Southampton)

### Building 67 Room 1007

#### Highfield Campus, University of Southampton

Talk Standard Model Parameters and Renormalization

### 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 $g^2=2.5$.

### Primary 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)

### Presentation Materials

 Slides
###### Your browser is out of date!

Update your browser to view this website correctly. Update my browser now

×