Thermal dark matter implies new physics not far above the weak scale

Abstract

In this work we complete a model independent analysis of dark matter constraining its mass and interaction strengths with data from astro- and particle physics experiments. We use the effective field theory framework to describe interactions of thermal dark matter particles of the following types: real and complex scalars, Dirac and Majorana fermions, and vector bosons. Using Bayesian inference we calculate posterior probability distributions for the mass and interaction strengths for the various spin particles. The observationally favoured dark matter particle mass region is 10-100 GeV with effective interactions that have a cut-off at 0.1-1 TeV. This mostly comes from the requirement that the thermal abundance of dark matter not exceed the observed value. Thus thermal dark matter coupled with present data implies new physics most likely under 10 TeV.

arXiv comment30 pages, 17 figures, 5 tables

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• Singlet Majorana fermion dark matter: a comprehensive analysis in effective field theory
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• Constraints on dimension-seven operators with a derivative in effective field theory for Dirac dark matter