Supersymmetry mechanism for naturally small density perturbations and baryogenesis

Details Supersymmetry mechanism for naturally small density perturbations and baryogenesis Supersymmetry mechanism for naturally small density perturbations and baryogenesis

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvl..71.4291c&link_type=abstract

Physical Review Letters, Volume 71, Issue 26, December 27, 1993, pp.4291-4294

Physics

2

Background Radiations, Supersymmetry, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We propose a mechanism by which density perturbations δρ/ρ~10-4 and a baryon asymmetry nB/s~10-10 can naturally be generated in any realistic supersymmetric theory. By ``naturally'' we mean that the coefficient λ in the usual toy-model inflationary potential V=λφ4 is related to the superpotential Yukawa coupling λe which generates the electron mass. We identify a nine-parameter ``quasiflat'' direction which generates δρ/ρ through chaotic inflation and which leads to an Affleck-Dine valley (flat direction) where primordial baryogenesis occurs.

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