Renormalization Group Improved Gap Equation for Color Superconductors
  The renormalization group is used to resum leading logarithmic contributions of the form alpha_s^{n+1} beta_0^n log^n (Delta/mu) to the gap equation appropriate for high density QCD. The scale dependence of the strong coupling constant alpha_s increases the gap by a factor of exp(33/16 (pi^2/4 - 1)) ~ 20 in the small coupling limit. 
Silas R. Beane, Paulo F. Bedaque and Martin J. Savage