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Baryogenesis from mixed particle decays

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arxiv hep-ph/9611425 v1 pith:HNB4TA55 submitted 1996-11-26 hep-ph

L. Covi , E. Roulet This is my paper · ORCID
classification hep-ph
keywords heavyasymmetriesdecaysenhancementmassmixedparticleparticles
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abstract

We consider the $CP$ violating asymmetries produced in the decay of heavy particles, studying the effects of heavy particle mixing for arbitrary mass splittings. A considerable enhancement of the asymmetries is achieved when the masses of the mixed states are comparable, and the enhancement is maximal for mass splittings of the order of the widths of the decaying particles. We apply the results to the particular case of heavy scalar neutrino decays relevant for leptogenesis scenarios.

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Cited by 4 Pith papers

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

  1. Resonant electromagnetic leptogenesis with coherent heavy-neutrino evolution

    hep-ph 2026-03 conditional novelty 6.0 of 10

    Resonant electromagnetic leptogenesis from TeV-scale neutrino dipole operators can reach the observed baryon asymmetry, but only with tuned mass splittings and diluted overproduction.

  2. The Majoron Cosmological Window: Dark Matter and Thermal Leptogenesis

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    The minimal majoron framework permits simultaneous majoron dark matter and thermal leptogenesis in a constrained cosmological window set by freeze-in production, warm dark matter bounds, and indirect detection limits.

  3. Insights on the Scale of Leptogenesis from Neutrino Masses and Neutrinoless Double-Beta Decay

    hep-ph 2025-02 conditional novelty 5.0 of 10

    In hierarchical seesaw leptogenesis, the required lightest heavy-neutrino mass sits between about 10^8 and 10^10 GeV for typical fine-tuning and can fall to 10^6 GeV with strong fine-tuning, as a function of the light...

  4. Leptonic CP asymmetry and heavy neutrino searches in seesaw scenario

    hep-ph 2026-06 unverdicted novelty 4.0 of 10

    Projects LHC and HL-LHC sensitivities to heavy neutrino mixing via dilepton channels in seesaw scenario, with dependence on R_ll and CP asymmetry.

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