Dark Matter EFT, the Third -- Neutrino WIMPs

Summary

This paper explores sterile neutrinos as dark matter candidates within an effective field theory (EFT) framework, showing they can satisfy relic density and detection constraints.

Key findings

• Sterile neutrinos coupling to third-generation fermions are viable dark matter candidates.
• An EFT approach allows these neutrinos to achieve the observed relic density.
• Direct and indirect detection constraints can be satisfied.
• The EFT can be linked to gauged third-generation B-L models or leptoquarks.

Methods

• Effective Field Theory (EFT) approach.
• Analysis of sterile neutrino couplings to third-generation fermions.
• Comparison with direct and indirect detection constraints.
• Consideration of LHC measurements.

Limitations

• The EFT approach is an approximation.
• Specific details of the underlying models are not fully explored.
• Experimental verification of these specific sterile neutrino models is pending.

Applications

• Guiding future dark matter detection experiments.
• Interpreting results from particle colliders like the LHC.
• Developing new theoretical models for dark matter.