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Electroweak Baryogenesis with Lepton Flavor Violation

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arxiv 1607.07316 v3 pith:MHWV4K3C submitted 2016-07-25 hep-ph

Cheng-Wei Chiang , Kaori Fuyuto , Eibun Senaha This is my paper · ORCID
classification hep-ph
keywords electroweakbaryogenesisbaryoncouplingcouplingscp-violatingdensityextra
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abstract

We investigate the feasibility of electroweak baryogenesis in a two-Higgs doublet model with lepton flavor violation. By scrutinizing the heavy Higgs boson mass spectrum, regions satisfying both strong first-order electroweak phase transition and the muon $g-2$ anomaly are identified. We also estimate the baryon number density by exploiting extra Yukawa couplings in the $\mu$-$\tau$ sector. It is found that a CP-violating source term can be enhanced by the $\mu$-$\tau$ flavor-violating coupling together with the extra $\tau$ coupling. With $\mathcal{O}(1)$ Yukawa couplings and CP-violating phases, the observed baryon number density is marginally produced under a generous assumption for the bubble wall profile.

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Cited by 3 Pith papers

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

  1. An Effective Sphaleron Awakens

    hep-ph 2025-06 conditional novelty 7.0 of 10

    A consistent 3D EFT computation of the Higgs phase sphaleron rate yields universal baryon preservation bounds x ≈ 0.025 (strong) and x ≈ 0.036 (weak), and shows two-loop corrections eliminate strong one-step transitio...

  2. Electroweak baryogenesis from charged current anomalies in $B$ meson decays

    hep-ph 2025-02 conditional novelty 6.0 of 10

    Complex lepton Yukawa couplings in a two Higgs doublet model that explain the R(D(*)) flavor anomalies can also source electroweak baryogenesis, yielding the observed baryon asymmetry under assumed strong first-order ...

  3. Super-critical primordial black hole formation via delayed first-order electroweak phase transition

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Delayed first-order electroweak phase transitions can form super-critical primordial black holes, and a timescale ratio t_H/t_V captures the threshold better than the standard density contrast.

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