Global constraints on vector-like WIMP effective interactions

In this work we combine information from relic abundance, direct detection, cosmic microwave background, positron fraction, gamma rays, and colliders to explore the existing constraints on couplings between Dark Matter and Standard Model constituents when no underlying model or correlation is assume...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2016-04, Vol.2016 (4), p.15-15
Main Authors: Blennow, Mattias, Coloma, Pilar, Fernández-Martínez, Enrique, Machado, Pedro A.N., Zaldívar, Bryan
Format: Article
Language:English
Subjects:
ASTRONOMY AND ASTROPHYSICS
dark matter experiments
dark matter theory
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Summary:In this work we combine information from relic abundance, direct detection, cosmic microwave background, positron fraction, gamma rays, and colliders to explore the existing constraints on couplings between Dark Matter and Standard Model constituents when no underlying model or correlation is assumed. For definiteness, we include independent vector-like effective interactions for each Standard Model fermion. Our results show that low Dark Matter masses below 20 GeV are disfavoured at the 3 σ  level with respect to higher masses, due to the tension between the relic abundance requirement and upper constraints on the Dark Matter couplings. Lastly, large couplings are typically only allowed in combinations which avoid effective couplings to the nuclei used in direct detection experiments.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2016/04/015