Abstract
We propose a model that realizes a semivisible dark photon which can contribute to the anomalous magnetic moment () of both electron and muon. In this model, the electron is deviated from the Standard Model (SM) prediction by the 1-loop diagrams involving the vectorlike leptons, while that of muon is deviated due to a nonvanishing gauge kinetic mixing with photons. We also argue that the -boson mass can be deviated from the SM prediction due to the vectorlike lepton loops, so that the value obtained by the CDF II experiment can be explained. Thus, this model simultaneously explains the recent three anomalies in of electron and muon as well as the -boson mass. The constraints on the dark photon can be avoided because of the semivisible decay of the dark photon, , where is a SM singlet vectorlike neutrino and is a -even Higgs boson of the gauge symmetry.
- Received 25 August 2023
- Accepted 9 January 2024
DOI:https://doi.org/10.1103/PhysRevD.109.015031
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society