Abstract
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 <30GeV/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 1.2×10-42cm2 at 8GeV/c2. This result is in tension with WIMP interpretations of recent experiments and probes new parameter space for WIMP-nucleon scattering for WIMP masses <6GeV/c2.
| Original language | English (US) |
|---|---|
| Article number | 241302 |
| Journal | Physical review letters |
| Volume | 112 |
| Issue number | 24 |
| DOIs | |
| State | Published - Jun 20 2014 |
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