Warm Inflation with the Standard Model

Drewes, Marco;Zell, Sebastian;et.al.
(2025) Physical Review Letters — Vol. 135 (2025)

Files

2503.pdf
  • Open Access
  • Adobe PDF
  • 508.27 KB
Download

Details

Authors
  • Drewes, MarcoUCLouvain
    Author
  • Zell, SebastianUCLouvain
    Author
  • et. al.
Abstract
We show for the first time that warm inflation is feasible with standard model (SM) gauge interactions alone. Our model consists of a minimal extension of the SM by a single scalar inflaton field with an axionlike coupling to gluons and a monomial potential. The effects of light fermions, which were previously argued to render warm inflation with the SM impossible, are alleviated by Hubble dilution of their chiral chemical potentials. Our model features only one adjustable combination of parameters and accommodates all inflationary observables. We briefly discuss implications for axion experiments, dark matter, and the strong <math display="inline"><mrow><mi>C</mi><mi>P</mi></mrow></math> problem.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Drewes, M., Zell, S., & et al. (2025). Warm Inflation with the Standard Model. Physical Review Letters, 135. https://doi.org/10.1103/9nn9-bsm9 (Original work published 2025)