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First results on low-mass WIMP from the CDEX-1 experiment at the China Jinping underground Laboratory
- Source :
- Physical Review D 88, 052004 (2013)
- Publication Year :
- 2013
-
Abstract
- The China Dark matter Experiment collaboration reports the first experimental limit on WIMP dark matter from 14.6 kg-day of data taken with a 994 g p-type point-contact germanium detector at the China Jinping underground Laboratory where the rock overburden is more than 2400 m. The energy threshold achieved was 400 eVee. According to the 14.6 kg-day live data, we placed the limit of N= 1.75 * 10^{-40} cm^{2} at 90% confidence level on the spin-independent cross-section at WIMP mass of 7 GeV before differentiating bulk signals from the surface backgrounds.<br />Comment: 5 pages, 5 figures
Details
- Database :
- arXiv
- Journal :
- Physical Review D 88, 052004 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1306.4135
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.88.052004