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

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Title
W boson mass and muon g-2 in a lepton portal dark matter model
Author(s)
Junichiro Kawamura; Shohei Okawa; Yuji Omura
Publication Date
2022-07
Journal
Physical Review d, v.106, no.1, pp. 015005-1 - 015005-9
Publisher
AMER PHYSICAL SOC
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 vectorlike leptons and a scalar dark matter (DM) that 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 vectorlike 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.
URI
https://pr.ibs.re.kr/handle/8788114/12135
DOI
10.1103/PhysRevD.106.015005
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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