23–28 Jun 2014
Columbia University
US/Eastern timezone

The gradient flow running coupling in SU2 with 8 flavors

25 Jun 2014, 09:20
20m
214 Pupin

214 Pupin

Talk Physics Beyond the Standard Model Physics beyond the standard model

Speaker

Dr Jarno Rantaharju (Riken Advanced Institute for Computational Science)

Description

We present preliminary results of the gradient flow running coupling with Dirichlet boundary condition in the SU(2) gauge theory with 8 fermion flavors. Improvements to the gradient flow measurement allow us to obtain a robust continuum limit. The results are consistent with perturbative running in the weak coupling region and show slow running at strong coupling.

Primary author

Dr Jarno Rantaharju (Riken Advanced Institute for Computational Science)

Co-authors

Prof. Kari Rummukainen (Department of Physics and Helsinki Institute of Physics, University of Helsinki) Dr Kimmo Tuominen (Department of Physics and Helsinki Institute of Physics, University of Helsinki) Mr Teemu Rantalaiho (Department of Physics and Helsinki Institute of Physics, University of Helsinki) Dr Tuomas Karavirta (CP3 -Origins, IFK & IMADA, University of Southern Denmark) Mr Viljami Leino (Department of Physics and Helsinki Institute of Physics, University of Helsinki)

Presentation materials