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arXiv · 1405.0300

Effects of Curvature-Higgs Coupling on Electroweak Fine-Tuning

Durmus A. Demir
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Abstract

It is shown that, nonminimal coupling between the Standard Model (SM) Higgs field and spacetime curvature, present already at the renormalizable level, can be fine-tuned to stabilize the electroweak scale against power-law ultraviolet divergences. The nonminimal coupling acts as an extrinsic stabilizer with no effect on the loop structure of the SM, if gravity is classical. This novel fine-tuning scheme, which could also be interpreted within Sakharov's induced gravity approach, works neatly in extensions of the SM involving additional Higgs fields or singlet scalars.

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Durmus A. Demir. 2014-05-10. Effects of Curvature-Higgs Coupling on Electroweak Fine-Tuning. https://doi.org/10.1016/j.physletb.2014.05.002

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