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$W$ boson mass and muon $g-2$ in a lepton portal dark matter model

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arxiv 2204.07022 v2 pith:AAIRE7TW submitted 2022-04-14 hep-ph hep-ex

Junichiro Kawamura , Shohei Okawa , Yuji Omura This is my paper · ORCID
classification hep-phhep-ex
keywords leptonbosondarkmassmattermuonextraleptons
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We study a lepton portal dark matter model, motivated by the deviation of the $W$ boson mass reported by the CDF collaboration. We introduce vector-like leptons and a scalar dark matter (DM) which exclusively couples to the extra leptons and muon. The one-loop corrections induced by the new particles can shift the $W$ boson mass. Besides, the discrepancy in the muon anomalous magnetic moment and the DM density can simultaneously be explained by this setup, if the vector-like lepton is lighter than 200 GeV and nearly degenerate with the DM particle. We also see that the constraints on such a light extra lepton from the collider experiments can be evaded due to the existence of the DM particle.

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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. Fermion-Portal Dark Matter at a High-Energy Muon Collider

    hep-ph 2024-12 conditional novelty 6.0 of 10

    At a 10 TeV muon collider, fermion-portal dark matter mediators could be discovered up to about 4.7 TeV, and including the muon parton distribution in simulations lowers the predicted reach and changes signal shapes.

  2. Searching for vector-like leptons decaying into an electron and missing transverse energy in e$^{+}$e$^{-}$ collisions with $\sqrt{s} = 240$ GeV at the FCC-ee

    hep-ex 2026-04 unverdicted novelty 4.0 of 10

    Monte Carlo projections for FCC-ee at 240 GeV set 95% CL exclusion limits on vector-like lepton mass and Yukawa coupling in a lepton-portal scalar dark-matter scenario if no signal appears.

  3. Revisiting CMSSM with Non-Universal Gaugino Masses under Current Constraints

    hep-ph 2024-12 conditional novelty 4.0 of 10

    Current data restrict the g~-SUGRA scenario to tanβ ≳ 5 and M0 ≳ 20 tanβ GeV, with large muon g-2 contributions difficult and future colliders needed to cover the remaining parameter space.

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