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We propose extension of minimal scotogenic model with discrete \(Z_4\) symmetry. The model is extended with a fermion triplet and a scalar singlet. The Yukawa coupling of triplet fermion with inert doublet gives positive contribution to muon’s anomalous magnetic moment. The decay of right-handed neutrino \(N_2\) involving fermion triplet also generate net lepton asymmetry only in muonic sector due to \(Z_4\) charges. Involvement of the Yukawa coupling both in Leptogenesis and in the anomalous magnetic moment of the muon results in a strong correlation between Leptogenesis and the recent Fermilab’s result.

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Leptogenesis and Muon ( \(g-2\) ) from a Vector Like Fermion Triplet

  • 会议论文

  • 发表日期：

    2025年

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  • Simran Arora,
  • Devabrat Mahanta,
  • B. C. Chauhan

摘要

We propose extension of minimal scotogenic model with discrete \(Z_4\) symmetry. The model is extended with a fermion triplet and a scalar singlet. The Yukawa coupling of triplet fermion with inert doublet gives positive contribution to muon’s anomalous magnetic moment. The decay of right-handed neutrino \(N_2\) involving fermion triplet also generate net lepton asymmetry only in muonic sector due to \(Z_4\) charges. Involvement of the Yukawa coupling both in Leptogenesis and in the anomalous magnetic moment of the muon results in a strong correlation between Leptogenesis and the recent Fermilab’s result.