Leptophobic Dark Matter at Neutrino Factories
Brian Batell, Patrick deNiverville, David McKeen, Maxim Pospelov, Adam, Ritz

TL;DR
High-luminosity neutrino experiments can effectively search for light leptophobic dark matter coupled via gauged baryon number, surpassing current direct detection limits in the sub-GeV mass range.
Contribution
This paper demonstrates the potential of fixed-target neutrino experiments to probe light leptophobic dark matter through baryonic interactions, extending sensitivity beyond existing bounds.
Findings
MiniBooNE can reach sensitivity to 10^{-6}
Sensitivity extends to sub-GeV dark matter masses
Significantly improves over current direct detection limits
Abstract
High-luminosity fixed-target neutrino experiments present a new opportunity to search for light sub-GeV dark matter and associated new forces. We analyze the physics reach of these experiments to light leptophobic dark states coupled to the Standard Model via gauging the baryon current. When the baryonic vector is light, and can decay to dark matter, we find that the MiniBooNE experiment in its current beam-dump configuration can extend sensitivity to the baryonic fine structure constant down to . This is significantly below the existing limits over much of the sub-GeV mass range currently inaccessible to direct detection experiments.
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