Dark matter and the early Universe

Abstract

Big-Bang nucleosynthesis (BBN) represents one of the earliest phenomena that can lead to observational constraints on the early Universe properties. It is well-known that many important mechanisms and phase transitions occurred before BBN. We discuss the possibility of gaining insight into the primordial Universe through studies of dark matter in cosmology, astroparticle physics and colliders. For this purpose, we assume that dark matter is a thermal relic, and show that combining collider searches with dark matter observables can lead to strong constraints on the period of freeze-out before BBN.

4 pages, 2 figures, contribution to the proceedings of the 39th International Conference on High Energy Physics (ICHEP2018), Seoul, 4-11 July 2018

References in corpus (4)

• Neutralino with the Right Cold Dark Matter Abundance in (Almost) Any Supersymmetric Model
• SuperIso Relic v4: A program for calculating dark matter and flavour physics observables in Supersymmetry
• Robustness of dark matter constraints and interplay with collider searches for New Physics
• AlterBBN v2: A public code for calculating Big-Bang nucleosynthesis constraints in alternative cosmologies