Cosmological Implications of Dynamical Supersymmetry Breaking

Details Cosmological Implications of Dynamical Supersymmetry Breaking Cosmological Implications of Dynamical Supersymmetry Breaking

1993-08-18

arxiv.org/abs/hep-ph/9308292v1

Phys.Rev.D49:779-787,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

24 pages (uses harvmac) UCSD/PTH 93-26, RU-37

Scientific paper

10.1103/PhysRevD.49.779

We provide a taxonomy of dynamical supersymmetry breaking theories, and discuss the cosmological implications of the various types of models. Models in which supersymmetry breaking is produced by chiral superfields which only have interactions of gravitational strength (\eg\ string theory moduli) are inconsistent with standard big bang nucleosynthesis unless the gravitino mass is greater than $\CO(3) \times 10^4$ GeV. This problem cannot be solved by inflation. Models in which supersymmetry is dynamically broken by renormalizable interactions in flat space have no such cosmological problems. Supersymmetry can be broken either in a hidden or the visible sector. However hidden sector models suffer from several naturalness problems and have difficulties in producing an acceptably large gluino mass.

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