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

Q: What type of study is this?

This is a Quantitative Study study.

Georgios K. Karananas; Mikhail Shaposhnikov; Sebastian Zell

doi:10.48550/arxiv.2507.15927

July 21, 2025Open Access

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

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Key Points

Inflation can be accommodated using the Higgs field in a Weyl-invariant framework, suggesting new avenues in theoretical physics.
Heavy axion-like particles play a crucial role in this process, impacting the stability of inflationary dynamics.
Nonminimally coupled interactions with the Standard Model augment the complexity of gravitational theories, providing deeper insights.
The study opens pathways for further exploration in high-energy particle physics and cosmology.

Implication

This analysis reveals inflation dynamics in a framework using heavy axion-like particles and Higgs field, indicating novel gravitational interactions.

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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Cite This Study

Karananas et al. (2025) studied this question.

synapsesocial.com/papers/68d46fdc31b076d99fa6a6e5 https://doi.org/10.48550/arxiv.2507.15927

View Full Paper

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

Key Points

Implication

Abstract

Discussion

Cite This Study

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

Key Points

Implication

Abstract

Discussion

Cite This Study

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