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Dark matter and the early Universe

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A. Arbey, J. Ellis, F. Mahmoudi, G. Robbins

Original languageEnglish
Article number035
JournalProceedings of Science
Volume340
Published1 Jan 2019
Event39th International Conference on High Energy Physics, ICHEP 2018 - Seoul, Korea, Republic of
Duration: 4 Jul 201811 Jul 2018

King's Authors

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.

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