Recent results from SU(2) with one adjoint Dirac fermion

TL;DR

This paper reports lattice study results for SU(2) gauge theory with one adjoint Dirac fermion, suggesting it may be near the conformal window with implications for beyond Standard Model physics.

Contribution

It provides new lattice data on spectroscopy, potential, topological charge, and anomalous dimension, indicating possible conformal behavior in this theory.

Findings

Data inconsistent with confining behavior

Evidence suggests near-conformal dynamics

Anomalous dimension close to 1

Abstract

We present some results for SU(2) with one adjoint Dirac flavour from lattice studies. Data for the spectroscopy, the static potential, topological charge, and the anomalous dimension of the fermionic condensate are included. Our findings are found to be in- consistent with conventional confining behaviour, instead pointing tentatively towards a theory lying within or very near the onset of the conformal window, with an anomalous dimension of the fermionic condensate of almost 1. Implications of these findings on the building of models of strongly-interacting dynamics beyond the standard model are discussed.