Jun 23 – 28, 2014
Europe/Zurich timezone

Cold plus warm dark matter models

Jun 26, 2014, 5:30 PM
Room 5 (Tuschinski Theatre)

Room 5

Tuschinski Theatre

Presentation Dark Matter: Cosmological Aspects Dark Matter: Cosmological Aspects


Dr Oleg Ruchayskiy (Ecole Polytechnique Federale de Lausanne)


Analyses of the cosmic microwave background anisotropies and of galaxy survey data allow for the possibility that dark matter particles were born relativistic yet became non-relativistic well before matter-radiation equality. Such "warm" or "cold plus warm" dark matter models may still have observable signatures at sub-Mpc scales, e.g. modifying the structure of galactic halos and their abundance. I will summarize these signatures and discuss particle physics models that provide such candidates. Although these dark matter particles have interaction strengths much weaker than neutrinos, I will argue that the combination of data from astrophysics, cosmology, and forthcoming particle physics experiments will enable us to constrain these models and learn about the properties of these candidates.

Primary author

Dr Oleg Ruchayskiy (Ecole Polytechnique Federale de Lausanne)

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