An anomaly-free two-component secluded WIMP model with a dark photon, dark Higgs, and scotogenic Dirac neutrino masses can account for the observed relic density while evading cosmological bounds.
A next-generation ground-based wide field-of-view gamma-ray observatory in the southern hemisphere
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abstract
The very-high-energy gamma-ray sky can be surveyed on a daily basis by particle-detector arrays at high (mountain) elevation. In the northern hemisphere the survey recently conducted by the HAWC gamma-ray observatory significantly enriched our knowledge about TeV gamma-ray sources. In this contribution, we will present an overview on the effort to realise a next-generation gamma-ray survey observatory in the southern hemisphere. We will discuss the unique science case for this observatory and how it will be embedded in the multi-messenger and multi-wavelength census of the non-thermal universe. In addition, we will introduce the newly founded international organisation that aims to realise this facility: The Southern Wide field-of-View Gamma-ray Observatory (SWGO) collaboration.
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Multi-component secluded WIMP dark matter and Dirac neutrino masses with an extra Abelian gauge symmetry
An anomaly-free two-component secluded WIMP model with a dark photon, dark Higgs, and scotogenic Dirac neutrino masses can account for the observed relic density while evading cosmological bounds.