Particle and Astro-Particle Physics Seminars

Late-time cosmology and particle physics: from large cold simulations to fundamental particle properties

by Wessel Valkenburg (CERN)

4-3-006 - TH Conference Room (CERN)

4-3-006 - TH Conference Room


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Taking into account all existing laboratory experiments, everything we know (i.e. lower bounds on parameters) about Dark Matter comes from cosmology and astrophysics, from phenomena that manifest themselves on proper-distance scales varying from 10^3 to 10^5 lightyears. I will first introduce the relevant concepts of basic cosmology, aiming at accessibility for non-cosmologists. Next, I discuss the relation between general-relativistic perturbation theory and newtonian simulations, and why this is a topic at all. Then I will show how state-of-the-art simulations can shed light on Dark Matter properties, if they can. Finally, I conclude with pointing out how these state-of-the-art simulations are off by several percent. There may be some pretty pictures of cosmological simulations.
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