Baryogenesis in a supersymmetric model with Z3 matter parity

Details Baryogenesis in a supersymmetric model with Z3 matter parity Baryogenesis in a supersymmetric model with Z3 matter parity

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phrvd..48.1555m&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 48, Issue 4, 15 August 1993, pp.1555-1559

Physics

1

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

Scientific paper

We analyze a scenario for baryogenesis at low temperature (~1 TeV) in supersymmetric extensions of the standard model. These extensions contain gauge singlets and discrete symmetries that suppress unwanted baryon- and lepton-number violation, and offer a framework to accommodate nonstandard neutrino physics. In our scenario, the decay of the lightest supersymmetric particle generates a net lepton number that is subsequently converted, via anomalous electroweak processes, into baryon number. We find that this possibility could be realized in models incorporating a Z3 discrete symmetry, although it requires a scalar singlet as the lightest supersymmetric particle and a somewhat complicated pattern of couplings and fields in the singlet sector.

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