TeV Scale Leptogenesis With Heavy Neutrinos

Abstract

Following a baryogenesis scenario proposed by Lazarides, Panagiotakopoulos and Shafi, we show how the observed baryon asymmetry can be explained via resonant leptogenesis in a class of supersymmetric models with an intermediate mass scale M_I<~10^9 GeV. It involves the out of equilibrium decay of heavy (<~M_I) right handed neutrinos at a temperature close to the TeV supersymmetry breaking scale. Such models can also resolve the MSSM mu problem.

arXiv comment1+9 pages, no figure, comments added, minor revisions, to appear in PRD

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• Anatomy of F_D-Term Hybrid Inflation
• Leptogenesis in the Exceptional Supersymmetric Standard Model: flavour dependent lepton asymmetries
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• S_3 Flavor Symmetry and Leptogenesis
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• F_D-Term Hybrid Inflation with Electroweak-Scale Lepton Number Violation
• Radiative Symmetry breaking, Cosmic Strings and Observable Gravity Waves in $U(1{)}_R$ symmetric $SU(5)\times U(1{)}_{\chi }$
• Hybrid Inflation, Dark Energy And Dark Matter
• Flux of Primordial Monopoles