engleski

Supersymmetric dark energy

We study a noninteracting supersymmetric model in de Sitter spacetime. Supersymmetry breaking induces a nonzero vacuum energy density. A short distance cut-off of the order of Planck length provides a matching between the vacuum energy density and the cosmological constant related to the de Sitter expansion parameter.

supersymmetry ; dark energy

Paper presented at the Fourth Southeastern European Workshop: Particle Physics from TeV to Planck Scale - BW2011 (Donji Milanovac, Serbia, 28 August - 1 September 2011)