Conformal Symmetry and the Standard Model

Meissner, Krzysztof A.; Nicolai, Hermann

doi:0.1016/j.physletb.2007.03.023

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Conformal Symmetry and the Standard Model

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Meissner, Krzysztof A.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Nicolai, Hermann
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Meissner, K. A., & Nicolai, H. (2007). Conformal Symmetry and the Standard Model. Physics Letters B, 648(4), 312-317. doi:0.1016/j.physletb.2007.03.023.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-48E5-9

Abstract

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.