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First results on sub-GeV spin-dependent dark matter interactions with ⁷Li

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arxiv 1902.07587 v3 pith:SVBS222H submitted 2019-02-20 astro-ph.IM physics.ins-det

First results on sub-GeV spin-dependent dark matter interactions with ⁷Li

classification astro-ph.IM physics.ins-det
keywords darkmatterspin-dependentdetectorinteractionstargetabove-groundbackground
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this work, we want to highlight the potential of lithium as a target for spin-dependent dark matter search in cryogenic experiments, with a special focus on the low-mass region of the parameter space. We operated a prototype detector module based on a Li$_2$MoO$_4$ target crystal in an above-ground laboratory. Despite the high background environment, the detector sets competitive limits on spin-dependent interactions of dark matter particles with protons and neutrons for masses between 0.8 GeV/c$^2$ and 1.5 GeV/c$^2$.

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