First Model Independent Results from DAMA/LIBRACPhase2

doi:10.3390/universe4110116

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	First Model Independent Results from DAMA/LIBRACPhase2
	Vittorio Merlo; Xiang-Dong Sheng; Zi-Piao Ye; Dai ZJ(戴长江); He HL(何会林); Ma XH(马欣华); Sheng XD(盛祥东); Ye ZP(叶子飘); He, Hui-Lin; Di Marco, Alessandro
刊名	UNIVERSE
	2018
卷号	4 期号:11 页码:116
关键词	dark matter low background NaI(Tl) scintillators model-independent annual modulation signature
ISSN号	2218-1997
DOI	10.3390/universe4110116
文献子类	Article
英文摘要	The first results obtained by the DAMA/LIBRA-phase2 experiment are presented. The data have been collected over six independent annual cycles corresponding to a total exposure of 1.13 ton x year, deep underground at the Gran Sasso National Laboratory. The DAMA/LIBRA-phase2 apparatus, about 250 kg highly radio-pure NaI(Tl), profits from a second generation high quantum efficiency photomultipliers and of new electronics with respect to DAMA/LIBRA-phasel. The improved experimental configuration has also allowed to lower the software energy threshold. The DAMA/LIBRA-phase2 data confirm the evidence of a signal that meets all the requirements of the model independent Dark Matter annual modulation signature, at 9.5 sigma - C.L. in the energy region (1-6) keV. In the energy region between 2 and 6 keV, where data are also available from DAMA/NaI and DAMA/LIBRA-phasel, the achieved C.L. for the full exposure (2.46 ton x year) is 12.9 sigma.
WOS关键词	INTERACTING MASSIVE PARTICLES ; ANNUAL MODULATION DATA ; DWARF TIDAL STREAM ; NAI(TL) SET-UP ; DARK-MATTER ; GALACTIC HALO ; SEARCH
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000451167700006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286725]
专题	高能物理研究所_粒子天体物理中心中国科学院高能物理研究所_教育处
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Vittorio Merlo,Xiang-Dong Sheng,Zi-Piao Ye,et al. First Model Independent Results from DAMA/LIBRACPhase2[J]. UNIVERSE,2018,4(11):116.
APA	Vittorio Merlo.,Xiang-Dong Sheng.,Zi-Piao Ye.,戴长江.,何会林.,...&Angelo Mattei.(2018).First Model Independent Results from DAMA/LIBRACPhase2.UNIVERSE,4(11),116.
MLA	Vittorio Merlo,et al."First Model Independent Results from DAMA/LIBRACPhase2".UNIVERSE 4.11(2018):116.