S8 Tension in the Context of Dark Matter–Baryon Scattering

We explore an interacting dark matter (IDM) model that allows for a fraction of dark matter (DM) to undergo velocity-independent scattering with baryons. In this scenario, structure on small scales is suppressed relative to the cold DM scenario. Using the effective field theory of large-scale struct...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Astrophysical journal. Letters 2023-09, Vol.954 (1), p.L8
Hauptverfasser:	He, Adam, Ivanov, Mikhail M., An, Rui, Gluscevic, Vera
Format:	Artikel
Sprache:	eng
Schlagworte:	Baryons Clustering Cosmic microwave background radiation Cosmology Dark energy Dark matter Field theory Galaxies Large scale structure of the universe Particle astrophysics Particle mass Redshift surveys Scattering cross sections Sky surveys (astronomy) Tension
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!