8-13 September 2013
Asilomar, California
US/Pacific timezone

Limits on spin-independent couplings of WIMP dark matter with a p-type point- contact germanium detector

12 Sep 2013, 17:00
Asilomar, California

Asilomar, California

Asilomar Conference Grounds, 800 Asilomar Avenue, Pacific Grove, CA 93950-3704
Oral Dark Matter Dark Matter VIII


Shin-Ted Lin (Academia Sinica Taiwan)


"We report new limits on spin-independent WIMP-nucleon interaction cross-section using 39.5 kg-days of data taken with a p-type point-contact germanium detector of 840 g fiducial mass at the Kuo-Sheng Reactor Neutrino Laboratory. Crucial to this study is the understanding of the selection procedures and, in particular, the bulk-surface events differentiation at the sub-keV range. The signal-retaining and background-rejecting efficiencies were measured with calibration gamma sources and a novel n-type point-contact germanium detector. Part of the parameter space in cross-section versus WIMP-mass implied by CoGeNT and other experiments is probed and excluded. Ref: H.B. Li et al., TEXONO Coll., arXiv:1303.0925 ; Phys. Rev. Lett., in press (2013)."

Primary author

Shin-Ted Lin (Academia Sinica Taiwan)

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