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	New limits on spin-independent and spin-dependent couplings of low-mass WIMP dark matter with a germanium detector at a threshold of 220 eV
	Lin, S. T. ; Li, H. B. ; Li, X. ; Lin, S. K. ; Wong, H. T. ; Deniz, M. ; Fang, B. B. ; He, D. ; Li, J. ; Lin, C. W. ; Lin, F. K. ; Ruan, X. C. ; Singh, V. ; Soma, A. K. ; Wang, J. J. ; Wang, Y. R. ; Wu, S. C. ; Yue, Q. ; Zhou, Z. Y.
	2010-10-12 ; 2010-10-12
关键词	SCINTILLATING CRYSTAL DETECTOR RESEARCH-PROGRAM NUCLEAR RECOILS GE-73 ATOMS NEUTRINO SEARCH IONIZATION SCATTERING PARTICLES GE Astronomy & Astrophysics Physics, Particles & Fields
中文摘要	An energy threshold of (220 +/- 10) eV was achieved at an efficiency of 50% with a four-channel ultralow-energy germanium detector, each with an active mass of 5 g. This provides a unique probe to weakly interacting massive particles (WIMP) dark matter with mass below 10 GeV. With a data acquisition live time of 0.338 kg-day at the Kuo-Sheng Laboratory, constraints on WIMPs in the galactic halo were derived. The limits improve over previous results on both spin-independent WIMP-nucleon and spin-dependent WIMP-neutron cross-sections for WIMP mass between 3 and 6 GeV. Sensitivities for full-scale experiments are projected. This detector technique makes the unexplored sub-keV energy window accessible for new neutrino and dark matter experiments.
语种	英语 ; 英语
出版者	AMER PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78815]
专题	清华大学
推荐引用方式 GB/T 7714	Lin, S. T.,Li, H. B.,Li, X.,et al. New limits on spin-independent and spin-dependent couplings of low-mass WIMP dark matter with a germanium detector at a threshold of 220 eV[J],2010, 2010.
APA	Lin, S. T..,Li, H. B..,Li, X..,Lin, S. K..,Wong, H. T..,...&Zhou, Z. Y..(2010).New limits on spin-independent and spin-dependent couplings of low-mass WIMP dark matter with a germanium detector at a threshold of 220 eV..
MLA	Lin, S. T.,et al."New limits on spin-independent and spin-dependent couplings of low-mass WIMP dark matter with a germanium detector at a threshold of 220 eV".(2010).

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