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arXiv · 1703.06892

Updated Constraints on the Dark Matter Interpretation of CDMS-II-Si Data

Samuel J. Witte·Graciela B. Gelmini
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Abstract

We present an updated halo-dependent and halo-independent analysis of viable light WIMP dark matter candidates which could account for the excess observed in CDMS-II-Si. We include recent constraints from LUX, PandaX-II, and PICO-60, as well as projected sensitivities for XENON1T, SuperCDMS SNOLAB, LZ, DARWIN, DarkSide-20k, and PICO-250, on candidates with spin-independent isospin conserving and isospin-violating interactions, and either elastic or exothermic scattering. We show that there exist dark matter candidates which can explain the CDMS-II-Si data and remain very marginally consistent with the null results of all current experiments, however such models are highly tuned, making a dark matter interpretation of CDMS-II-Si very unlikely. We find that these models can only be ruled out in the future by an experiment comparable to LZ or PICO-250.

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Samuel J. Witte, Graciela B. Gelmini. 2017-03-20. Updated Constraints on the Dark Matter Interpretation of CDMS-II-Si Data. https://doi.org/10.1088/1475-7516%2F2017%2F05%2F026

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