Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2016/02/002
Keywords
dark matter theory; dark matter experiments; particle physics - cosmology connection
Funding
- FWO-Vlaanderen [1271513, G020714N]
- Belgian Federal Science Policy Office [P7/37]
- Vrije Universiteit Brussel through the Strategic Research Program High-Energy Physics
- DFG cluster of excellence Origin and Structure of the Universe
- TUM Graduate School
- Studienstiftung des Deutschen Volkes
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We present a comprehensive study of a model where the dark matter is composed of a singlet real scalar that couples to the Standard Model predominantly via a Yukawa interaction with a light quark and a colored vector-like fermion. A distinctive feature of this scenario is that thermal freeze-out in the early universe may be driven by annihilation both into gluon pairs at one-loop (gg) and by virtual internal Bremsstrahlung of a gluon (q (q) over barg). Such a dark matter candidate may also be tested through direct and indirect detection and at the LHC; viable candidates have either a mass nearly degenerate with that of the fermionic mediator or a mass above about 2 TeV.
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