13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

A loophole to the electromagnetic cascade theory : Solving the lithium problem with a sterile neutrino.

15 Dec 2015, 17:18
21m
Level -1, Room 16 (International Conference Centre Geneva)

Level -1, Room 16

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva

Speaker

Vivian Poulin (Unite Reseaux du CNRS (FR))

Description

After a recap of the standard e.m. cascade theory, I will discuss a loophole that can have a large effect in the early universe, notably in altering primordial nucleosynthesis bounds on electromagnetically decaying relic particles. I will finally show how this may greatly simplify the possibility to address the long-standing "lithium problem" in terms of new physics models, and solve it explicitely with a proof-of-principle particle physics model, namely the sterile neutrino.

Primary author

Vivian Poulin (Unite Reseaux du CNRS (FR))

Co-author

Pasquale Serpico (Unite Reseaux du CNRS (FR))

Presentation Materials