On the scale variation of the total cross section for Higgs production at the LHC and at the Tevatron A. Cafarella, C. Corianò, M. Guzzi and J. Smith Eur. Phys. J. C, 47 3 (2006) 703-721 Published online: 21 July 2006 DOI: 10.1140/epjc/s2006-02608-5