Search for Low-Mass WIMPs with SuperCDMS

By R. Agnese, A. Anderson, M. Asai, D. Balakishiyeva, R. Thakur, D. Bauer, J. Beaty, J. Billard, A. Borgland, M. Bowles and 85 more. 2014

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We report a first search for weakly interacting massive particles (WIMPs) using the background rejection capabilities of SuperCDMS. An exposure of 577 kg-days was analyzed for WIMPs with mass < 30 GeV/c2, with the signal region blinded. Eleven events were observed after unblinding. We set an upper limit on the spin-independent WIMP-nucleon cross section of 1.2e-42 cm2 at 8 GeV/c2. This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses < 6 GeV/c2.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/988c87eb68560468c97d1854ec47d655a248a8a6