Weyl-invariant Einstein–Cartan gravity with a heavy ALP: Higgs inflation and α-attractors

Physics Letters B 2026 Open access

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Authors: Georgios K. Karananas, Mikhail Shaposhnikov, Sebastian Zell
DOI: 10.1016/j.physletb.2026.140151
Cited by: 3
References: 87

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.

Fields of Study & Subjects

Cosmology and Gravitation Theories Dark Matter and Cosmic Phenomena Black Holes and Theoretical Physics

Publication details

Journal / source
Physics Letters B
Publisher
Elsevier BV
Volume
873
Pages
140151–140151
Publication date
9 January 2026
Language
EN