25-27 janvier 2010
IPN Lyon
Fuseau horaire Europe/Paris

Gravitino Dark matter and BBN

26 janv. 2010 à 09:00
Amphi Dirac (IPN Lyon)

Amphi Dirac

IPN Lyon

4, rue Enrico Fermi 69622 Villeurbanne Cedex France


M. Sean Bailly (LAPTH)


Supersymmetry is an elegant extension of the standard model that presents many interesting features such as interesting candidates for dark matter. I will focus on the case of a stable gravitino as the lightest supersymmetric particle (LSP). Models with a gravitino LSP can also solve the lithium problems linked to big bang nucelosynthesis (BBN). Predicted abundances in the standard description of BBN are incompatible with observations. If the decay of the next to lightest supersymmetric particle into the gravitino occurs during BBN, the lithium problems can be solved.

Auteur principal

M. Sean Bailly (LAPTH)

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