4.7 Article

W-mass anomaly in the simplest linear seesaw mechanism

Journal

PHYSICS LETTERS B
Volume 834, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.physletb.2022.137408

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Funding

  1. KIAS Individual Grants at Korea Institute for Advanced Study [PG086001]
  2. Government of India, SERB [SRG/2020/002303]
  3. [PID2020-113775GB-I00]
  4. [CIPROM/2021/054]

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The simplest linear seesaw mechanism can explain the new CDF-II W boson mass measurement. The model includes quasi-Dirac leptons and a second, leptophilic, scalar doublet to explain small neutrino masses. The proposal is consistent with multiple physics tests and restrictions.
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. (c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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