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Leptogenesis in the type III seesaw mechanism

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arxiv hep-ph/0312224 v2 pith:5OS2PVVT submitted 2003-12-16 hep-ph

classification hep-ph
keywords leptogenesismechanismseesawtypeneutrinoadvantagesassumedcertain
verification ladder T0 review T1 audit T2 compute T3 formal
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It is shown that the type III seesaw mechanism proposed recently can have certain advantages over the conventional (or type I) seesaw mechanism for leptogenesis. In particular a resonant enhancement of leptogenesis via heavy quasi-Dirac right-handed neutrino pairs can occur without a special flavor form or "texture" of the mass matrices being assumed. Some of the requirements for neutrino mixing and leptogenesis are effectively decoupled.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Radiative Lifting of $\mathbb{Z}_3$ Domain-Wall Degeneracy in a Type-III Seesaw Model: Implications for Leptogenesis and Gravitational Waves

    hep-ph 2026-06 unverdicted novelty 5.0 of 10

    A Z3-symmetric Type-III seesaw model uses radiative Coleman-Weinberg effects to lift vacuum degeneracy and annihilate domain walls, fitting neutrino data, generating baryon asymmetry via leptogenesis at 10^9 GeV tripl...

  2. Probing Type II Seesaw Leptogenesis Through Lepton Flavor Violation

    hep-ph 2025-01 conditional novelty 4.0 of 10

    A scan over 3σ neutrino parameters yields the most conservative lower bounds on the triplet-Higgs cubic coupling from μ→eγ, μ→3e, and μ-e conversion.

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