Infrared Zero of $\beta$ and Value of $\gamma_m$ for an SU(3) Gauge   Theory at the Five-Loop Level
  We calculate the value of the coupling at the infrared zero of the beta function of an asymptotically free SU(3) gauge theory at the five-loop level as a function of the number of fermions. Both a direct analysis of the beta function and analyses of Pad\'e approximants are used for this purpose. We then calculate the value of the five-loop anomalous dimension, $\gamma_m$, of the fermion bilinear at this IR zero of the beta function. 
Thomas A. Ryttov and Robert Shrock
hep-th