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arXiv · 2212.07442

Towards A Direct Detection of the Spin of Dark Matter

Leah Jenks·Konstantinos Koutrolikos·Evan McDonough·Stephon Alexander·S. James Gates Jr
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Abstract

We investigate the contribution of higher spin particles in the signal of direct detection experiments searching for dark matter. We consider a bosonic or fermionic higher spin dark matter (HSDM) candidate which interacts with the Standard Model via a dark U(1) mediator. For a particular subclass of interactions, spin-polarized targets may be used for spin determination: The angular dependence of scatterings can distinguish integer (spin-$s$) vs. half-integer (spin-$s + 1/2$), while the recoil energy dependence of the signal determines $s$. We consider also the signal of a supersymmetric higher spin dark sector, which suggests a characteristic signal (''SUSY Rilles'') for directional direct detection.

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Leah Jenks, Konstantinos Koutrolikos, Evan McDonough, Stephon Alexander, S. James Gates Jr. 2022-12-14. Towards A Direct Detection of the Spin of Dark Matter. https://doi.org/10.1016/j.physletb.2023.137956

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