Search for Low-Mass Weakly Interacting Massive Particles with SuperCDMS
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 <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 1.2×10-42 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.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2014
- DOI:
- arXiv:
- arXiv:1402.7137
- Bibcode:
- 2014PhRvL.112x1302A
- Keywords:
-
- 95.35.+d;
- 29.40.Wk;
- 95.55.Vj;
- Dark matter;
- Solid-state detectors;
- Neutrino muon pion and other elementary particle detectors;
- cosmic ray detectors;
- High Energy Physics - Experiment;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- Physics - Instrumentation and Detectors
- E-Print:
- 6 pages, 4 figures