Conformal symmetry and the Standard Model

  title={Conformal symmetry and the Standard Model},
  author={Krzysztof A. Meissner and Hermann Nicolai},
  journal={Physics Letters B},
We re-examine the question of radiative symmetry breaking in the Standard Model in the presence of right-chiral neutrinos and a minimally enlarged scalar sector. We demonstrate that, with these extra ingredients, the hypothesis of classically unbroken conformal symmetry, besides naturally introducing and stabilizing a hierarchy, is compatible with all available data; in particular, there exists a set of parameters for which the model may remain viable even up to the Planck scale. The decay… Expand

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