Parametric-resonance production of QCD axions
Abstract
Dark matter axion production can be significantly enhanced through a generic cosmological mechanism: primordial temperature fluctuations periodically modulate the axion mass during the QCD phase transition, thereby triggering parametric resonance in axion field evolution. This interplay between the resonance and the misalignment mechanism moves the predicted axion mass window for the observed dark matter abundance to 10 − 4 − 10 − 3 eV , shifting the preferred mass to previously unexplored higher ranges.
Fields of Study & Subjects
Dark Matter and Cosmic Phenomena
Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Publication details
- Journal / source
- Physics Letters B
- Publisher
- Elsevier BV
- Volume
- 879
- Pages
- 140680–140680
- Publication date
- 25 June 2026
- Language
- EN