Gradient flow and IR fixed point in SU(2) with Nf=8 flavors

2015/11/11 by Leino, Viljami, Karavirta, Tuomas, Rantaharju, Jarno +4
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat)

paper · doi:10.48550/arxiv.1511.03563

Abstract

We study the running of the coupling in SU(2) gauge theory with 8 massless fundamental representation fermion flavours, using the gradient flow method with the Schrödinger functional boundary conditions. Gradient flow allows us to measure robust continuum limit for the step scaling function. The results show a clear indication of infrared fixed point consistent with perturbation theory.

Related

• Gradient flow running coupling in SU(2) Nf=6 flavors
• The gradient flow running coupling in SU2 with 8 flavors
• Infrared Behaviour of SU(2) Gauge Theory with N_f fundamental flavours
• The Gradient Flow Coupling in Minimal Walking Technicolor
• Infrared fixed point of the SU(3) gauge theory with N_f = 10 flavors