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