Exploring the cosmological degeneracy between decaying dark matter model and viscous $$\Lambda $$ Λ CDM
Abstract In the context of a homogeneous and isotropic universe, we consider the degeneracy condition at the background level between two scenarios in which processes out of equilibrium are possible; this consideration allows us to deviate from the perfect fluid description, and in this case bulk vi...
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| Principais autores: | , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
SpringerOpen
2025-03-01
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| Series: | European Physical Journal C: Particles and Fields |
| Acceso en liña: | https://doi.org/10.1140/epjc/s10052-025-13947-y |
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