Search for Low-Mass WIMPs with SuperCDMS

Understand

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.