Thermal leptogenesis in extended supersymmetric seesaw model

Journal Article · Mon Jan 01 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.011701· OSTI ID:20933193

Hirsch, M; Valle, J W. F.; Malinsky, M; Romao, J C; Sarkar, U ^[1]

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1. Instituto de Fisica Corpuscular--C.S.I.C./Universitat de Valencia Campus de Paterna, Apt 22085, E-46071 Valencia (Spain)

We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet {sigma}, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of {sigma} to leptons.

• OSTI ID: 20933193
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
HIGGS MODEL
MASS
NEUTRINOS
PARITY
PARTICLE DECAY
PARTICLE PRODUCTION
SO-10 GROUPS
SUPERSYMMETRY
TEV RANGE