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arXiv · 2208.04983

W-mass Anomaly in the Simplest Linear Seesaw Mechanism

Aditya Batra·Praveen Bharadwaj·Sanjoy Mandal·Rahul Srivastava·José W. F. Valle
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Abstract

The simplest linear seesaw mechanism can accommodate the new CDF-II $W$ mass measurement. In addition to Standard Model particles, the model includes quasi-Dirac leptons, and a second, leptophilic, scalar doublet seeding small neutrino masses. Our proposal is consistent with electroweak precision tests, neutrino physics, rare decays and collider restrictions, requiring a new charged scalar below a few TeV, split in mass from the new degenerate scalar and pseudoscalar neutral Higgs bosons.

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Aditya Batra, Praveen Bharadwaj, Sanjoy Mandal, Rahul Srivastava, José W. F. Valle. 2022-08-09. W-mass Anomaly in the Simplest Linear Seesaw Mechanism. https://doi.org/10.1016/j.physletb.2022.137408

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