Explaining the $W$ boson mass anomaly and dark matter with a $U(1)$ dark sector

Abstract

The $W$ boson mass recently reported by the CDF collaboration shows a deviation from the standard model prediction with an excess at $7\sigma$ level. We investigate two simple extensions of the standard model with an extra $U(1)$ dark sector. One is the $U(1{)}_x$ extension, where the $U(1{)}_x$ gauge field mixes with the standard model through gauge kinetic terms. The other is a general $U(1{)}_{\mathbf{A}Y+\mathbf{B}q}$ extension of the standard model. Fitting various experimental constraints we find the $U(1{)}_x$ extension with only kinetic mixing can enhance the $W$ boson mass for at most 10~MeV. While the $U(1{)}_{\mathbf{A}Y+\mathbf{B}q}$ extension can easily generate 77~MeV enhancement of the $W$ boson mass and also offer a viable dark matter candidate with mass ranging from several hundred GeV to TeV, which may be detected by future dark matter direct detection experiments with improved sensitivities.

20 pages, 5 figures

References in corpus (8)

• Results from a search for dark matter in the complete LUX exposure
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• Measurement of the W Boson Mass with the D0 Detector
• Measurement of the W boson mass
• Cosmic Coincidence and Asymmetric Dark Matter in a Stueckelberg Extension
• Dirac dark matter and $b\to s{\ell }^{+}{\ell }^{-}$ with $\mathrm{U}(1)$ gauge symmetry
• String Resonances at Hadron Colliders

Cited by in corpus (15)

• Compatibility of muon $g-2$, $W$ mass anomaly in type-X 2HDM
• A leptoquark and vector-like quark extended model for the simultaneous explanation of the $W$ boson mass and muon $g-2$ anomalies
• Heavier $W$ boson, dark matter and gravitational waves from strings in an $SO(10)$ axion model
• $W$ mass in a model with vector-like leptons and $U(1{)}^{\prime }$
• $Z$ boson mixing and the mass of the $W$ boson
• Constraints on the dark sector from electroweak precision observables
• CDF-II W boson mass in the Dirac Scotogenic model
• Using $\gamma$-ray observations of dwarf spheroidal galaxies to test the possible common origin of the W-boson mass anomaly and the GeV $\gamma$-ray/antiproton excesses
• $E_6$ Models in Light of Precision $M_W$ Measurements
• $B-L$ model in light of the CDF II result
• $W$ boson mass shift, dark matter and $(g-2{)}_{\ell }$ in a scotogenic-Zee model
• WIMP Dark Matter within the dark photon portal
• Accommodating the CDF W-boson Mass Measurement in the Beautiful Mirror Model
• Complex scalar dark matter in a new gauged U(1) symmetry with kinetic and direct mixings
• Constraints on the $U(1{)}_{B-L}$ model from global QCD analysis