Probes of nearly conformal behavior in lattice simulations of minimal walking technicolor

TL;DR

This paper presents lattice simulation results suggesting minimal walking technicolor exhibits nearly conformal behavior, with evidence of an infrared fixed point and no spontaneous chiral symmetry breaking.

Contribution

It provides high-precision lattice data supporting the existence of a nontrivial infrared fixed point in minimal walking technicolor.

Findings

Pion decay constant vanishes in the infinite volume limit

Chiral condensate dependence on quark mass is inconsistent with spontaneous symmetry breaking

Results align with predictions of an all-orders beta function and Schroedinger functional studies

Abstract

We present results from high precision, large volume simulations of the lattice gauge theory corresponding to minimal walking technicolor. We find evidence that the pion decay constant vanishes in the infinite volume limit and that the dependence of the chiral condensate on quark mass m_q is inconsistent with spontaneous symmetry breaking. These findings are consistent with the all-orders beta function prediction as well as the Schroedinger functional studies that indicate the existence of a nontrivial infrared fixed point.