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arXiv · 2507.15927

Weyl-invariant Einstein-Cartan gravity with a heavy ALP: Higgs Inflation and $\alpha$-attractors

Georgios K. Karananas·Mikhail Shaposhnikov·Sebastian Zell
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Abstract

We initiate the analysis of the inflationary dynamics in Weyl-invariant Einstein-Cartan gravity nonminimally coupled to the Standard Model of particle physics. We take the axion-like particle of gravitational origin to be heavy and show that inflation with the Higgs field can be accommodated in this framework.

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Georgios K. Karananas, Mikhail Shaposhnikov, Sebastian Zell. 2025-07-21. Weyl-invariant Einstein-Cartan gravity with a heavy ALP: Higgs Inflation and $\alpha$-attractors. https://arxiv.org/abs/2507.15927

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