A model for pseudo-scalar dark matter is built from a broken dark U(1)_X gauge symmetry without dark fermions, yielding a stable pseudo-NGB with suppressed direct detection and viable relic density via annihilations into SM particles or light scalars.
Direct Detection of Vector Dark Matter
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abstract
In this paper we complete formulae for the elastic cross section of general vector dark matter with nucleon in the direct detection at the leading order of the strong coupling constant, assuming that the dark matter is composed of vector particles. As an application of our formulae, the direct detection of the first Kaluza-Klein photon in the minimal universal extra dimension model is discussed. It is found that the cross section is larger than those in the previous works by up to a factor of ten.
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2026 1verdicts
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Pseudo-scalar dark matter from a broken gauged symmetry
A model for pseudo-scalar dark matter is built from a broken dark U(1)_X gauge symmetry without dark fermions, yielding a stable pseudo-NGB with suppressed direct detection and viable relic density via annihilations into SM particles or light scalars.