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arXiv · 2605.28728

Linking the Gauge Hierarchy with Neutrino Masses and Dark Matter via Two-step Cosmological Selection

Jin-Lei Yang·Frank F. Deppisch
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Abstract

The hierarchy problem between the electroweak (EW) and Planck scales remains a central puzzle in modern physics. We discuss a promising solution operating through the cosmological selection of the EW vacuum in a multiverse landscape, where the EW scale is dynamically approached as the configuration that maximizes the vacuum energy. By extending the Standard Model with a complex scalar singlet and right-handed neutrinos, charged under a global $U(1)_{B-L}$ symmetry, the model not only explains the smallness of the EW scale. It can also account for neutrino masses via the seesaw mechanism and the matter-antimatter asymmetry via leptogenesis. In addition, it provides a viable dark matter candidate that is testable in future neutrino experiments.

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Jin-Lei Yang, Frank F. Deppisch. 2026-05-27. Linking the Gauge Hierarchy with Neutrino Masses and Dark Matter via Two-step Cosmological Selection. https://arxiv.org/abs/2605.28728

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