Asymptotic Padé Predictions up to Six Loops in QCD and Eight Loops in $\lambda {\varphi }^4$

J. A. Gracey, I. Jack, D. R. T. Jones

We assess the accuracy of our previous Asymptotic Padé predictions of the five-loop QCD $\beta$-function and quark mass anomalous dimension in the light of subsequent exact results. We…