MS bar Perturbation Theory and the Higgs Boson Mass

Abstract

We show that MS bar perturbation theory develops tachyonic singularities for some value of the dimensional regularization scale mu unless the physical Higgs mass exceeds some (cutoff dependent) minimum value.

Comments: 8 pages, Latex. This submission supersedes hep-ph/9512226, hep-ph/9512286, and Phys.Lett.B377,251