Taming the Scalar Mass Problem with a Singlet Higgs Boson

We investigate the fine-tuning problem in the Standard Model and show that Higgs boson and top quark masses consistent with current experimental bounds cannot be obtained unless one extends the particle spectrum. A minimal extension which achieves this involves addition of a singlet real scalar and one generation of vectorlike fermions. We show that this leads to a phenomenologically viable prediction for the mass of the Standard Model Higgs boson.Comment: (LaTeX file), 13 pages, preprint no. SINP-TNP/94-1

Quadratic divergences in renormalisable field theories

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