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arXiv · 1207.4981

Radiatively decaying scalar dark matter through U(1) mixings and the Fermi 130 GeV gamma-ray line

Jong-Chul Park·Seong Chan Park
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Abstract

In light of the recent observation of the Fermi-LAT 130 GeV gamma-ray line, we suggest a model of scalar dark matter in hidden sector, which can decay into two (hidden) photons. The process is radiatively induced by a GUT scale fermion in the loop, which is charged under a hidden sector U(1), and the kinetic mixing ($\sim εF^{μν}F'_{μν}$) enables us to fit the required decay width for the Fermi-LAT peak. The model does not allow any dangerous decay channels into light standard model particles.

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Jong-Chul Park, Seong Chan Park. 2012-10-31. Radiatively decaying scalar dark matter through U(1) mixings and the Fermi 130 GeV gamma-ray line. https://doi.org/10.1016/j.physletb.2012.12.035

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