Jarno Rantaharju

The Gradient Flow Coupling in Minimal Walking Technicolor

We present a measurement of the running coupling in SU(2) with two adjoint fermions in the Yang-Mills gradient flow scheme. The simulations are performed with Schrodinger Functional boundary conditions using an improved HEX-smeared Wilson fermion action. We obtain a step scaling function by defining the coupling at a scale relative to the finite size of the lattice. We find a continuum limit with a non-trivial infrared fixed point.

Gradient flow coupling in the SU(2) gauge theory with two adjoint fermions

We study SU(2) gauge theory with two fermion flavors in the adjoint representation. Using a clover improved HEX smeared action and the gradient flow running coupling allows us to simulate with larger lattice size than before. We find an infrared fixed point after a continuum extrapolation in the range

The gradient flow running coupling in SU(2) gauge theory with

4.5 \lesssim g^{*2} \lesssim 5

N_f=8

. We also measure the mass anomalous dimension and find the value

fundamental flavors

0.25 \lesssim \gamma^* \lesssim 0.28

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

at the fixed point.

Template Composite Dark Matter : SU(2) gauge theory with 2 fundamental flavours

We study the evolution of the coupling in SU(2) gauge field theory with

Perturbative improvement of SU(2) gauge theory with two Wilson fermions in the adjoint representation

N_f=8

The gradient flow running coupling in SU2 with 8 flavors

fundamental fermion flavors on the lattice. This model is expected to have an infrared fixed point at high coupling. We use HEX-smeared Wilson-clover action, and measure the gradient flow running coupling with Dirichlet boundary conditions. Extrapolating our results to continuum, we find an infrared fixed point at

Running coupling in SU(2) with adjoint fermions

g^2=8.24(59)^{+0.97}_{-1.64}