Generalising axion-like particle as the curvaton: sourcing primordial density perturbation and non-Gaussianities

Abstract We investigate the non-perturbatively generated axion-like particle (ALP) potential, involving fermions in the dark sector that couple to the ALP, in an early universe cosmological inflationary stage with the ALP being a spectator field. The potential here deviates from the standard cosine...

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Bibliographic Details
Main Authors: Anish Ghoshal, Abhishek Naskar
Format: Article
Language:English
Published: SpringerOpen 2024-10-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-13330-3
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