Sergio Sevillano Munoz's Outputs (3)

A particle's perspective on screening mechanisms (2024)
Journal Article
Sevillano Muñoz, S. (2024). A particle's perspective on screening mechanisms. Journal of Cosmology and Astroparticle Physics, 2024(12), https://doi.org/10.1088/1475-7516/2024/12/052

Screening mechanisms are a natural method for suppressing long-range forces in scalar-tensor theories as they link the local background density to their strength. Focusing on Brans-Dicke theories, those including a non-minimal coupling between a scal... Read More about A particle's perspective on screening mechanisms.

Cosmic microwave background constraints on extended dark matter objects (2024)
Journal Article
Croon, D., & Muñoz, S. S. (2024). Cosmic microwave background constraints on extended dark matter objects. Journal of Cosmology and Astroparticle Physics, 2024(07), Article 060. https://doi.org/10.1088/1475-7516/2024/07/060

Primordially formed extended dark objects would accrete baryonic matter and impact the ionisation history of the Universe. Insisting on consistency with the anisotropies of the cosmic microwave background, we derive constraints on the dark matter fra... Read More about Cosmic microwave background constraints on extended dark matter objects.

Scaling solutions as Early Dark Energy resolutions to the Hubble tension (2024)
Journal Article
Copeland, E. J., Moss, A., Sevillano Muñoz, S., & White, J. M. (2024). Scaling solutions as Early Dark Energy resolutions to the Hubble tension. Journal of Cosmology and Astroparticle Physics, 2024(05), Article 078. https://doi.org/10.1088/1475-7516/2024/05/078

A wide class of scalar field models including Quintessence and K-essence have the attractive property of tracker regimes, where the energy density stored in the field evolves so as to mimic that of the dominant background component. During this evolu... Read More about Scaling solutions as Early Dark Energy resolutions to the Hubble tension.