Dark radiation is a natural extension of Lambda CDM for which there are tentative observational hints. I discuss how dark radiation arises naturally in UV-complete models of the early universe, and explain the phenomenology associated to it. The talk is based on 1208.3562 and 1304.1804.
University of Oxford
Friday, May 10, 2013 - 17:15
Building 54 (Maths) Lecture Theatre 5A
STAG Seminar: Origin and Phenomenology of Dark Radiation