Renormalization Group Analysis in NRQCD for Colored Scalars
  The vNRQCD Lagrangian for colored heavy scalar fields in the fundamental representation of QCD and the renormalization group analysis of the corresponding operators are presented. The results are an important ingredient for renormalization group improved computations of scalar-antiscalar bound state energies and production rates at next-to-next-to-leading-logarithmic (NNLL) order. 
Andre H. Hoang and Pedro Ruiz-Femenia