Lifting of Flat Directions of the MSSM in de Sitter Background

Details Lifting of Flat Directions of the MSSM in de Sitter Background Lifting of Flat Directions of the MSSM in de Sitter Background

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1078..500g&link_type=abstract

SUPERSYMMETRY AND THE UNIFICATION OF FUNDAMENTAL INTERACTIONS. AIP Conference Proceedings, Volume 1078, pp. 500-502 (2008).

Physics

Supersymmetric Models, Field Theory, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We derive one-loop effective potentials in de Sitter background for scalar, fermion and gauge-boson loops. The results are applied to flat directions of the MSSM. It is found that due to Yukawa couplings, a lifting mass term of order of the Hubble rate arises. The lifting contributions mediated by the gauge couplings are found to cancel at leading order in the Hubble rate.

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