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<p>We present a novel baryogenesis mechanism in a three-Higgs doublet model. The lightest doublet plays the role of the standard Higgs, and there are two heavier Higgs bosons. We assume that the two heavy Higgs are responsible for inflation, and during the reheating phase after inflation the heavy Higgs produce an asymmetry in the light Higgs due to CP-violating quartic couplings. The asymmetry in the light Higgs then converts to a baryon (and lepton) asymmetry through electroweak instantons.</p>

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Baryogenesis from primordial CP violation

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月15日

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  • Venus Keus,
  • Edward W. Kolb

摘要

We present a novel baryogenesis mechanism in a three-Higgs doublet model. The lightest doublet plays the role of the standard Higgs, and there are two heavier Higgs bosons. We assume that the two heavy Higgs are responsible for inflation, and during the reheating phase after inflation the heavy Higgs produce an asymmetry in the light Higgs due to CP-violating quartic couplings. The asymmetry in the light Higgs then converts to a baryon (and lepton) asymmetry through electroweak instantons.