DAMA/LIBRA phase1 model independent results

doi:10.1142/s0217751x16420069

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

	DAMA/LIBRA phase1 model independent results
	Bernabei, R; Belli, P; d'Angelo, S; Di Marco, A; Montecchia, F; d'Angelo, A; Incicchitti, A; Prosperi, D; Cappella, F; Caracciolo, V
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS A
	2016
卷号	31 期号:31 页码:1642006
关键词	Dark Matter direct detection annual modulation
DOI	10.1142/s0217751x16420069
英文摘要	Experimental observations and theoretical arguments at Galaxy and larger scales have suggested that a large fraction of the Universe is composed by Dark Matter (DM) particles. This has motivated the DAMA experimental efforts to investigate the presence of such particles in the galactic halo by exploiting a model independent signature with highly radiopure setups deep underground. In this paper, a review of the results obtained with the total exposure of 1.04 ton x yr collected by DAMA/LIBRA-phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN during seven annual cycles is given. The DAMA/LIBRA-phase1 data give evidence for the presence of DM particles in the galactic halo, on the basis of the exploited model independent DM annual modulation signature by using highly radiopure NaI(Tl) target, at 7.5 sigma C.L. Including also the data of the first generation DAMA/NaI experiment (cumulative exposure 1.33 ton x yr, corresponding to 14 annual cycles), the C. L. is 9.3 sigma and the modulation amplitude of the single-hit scintillation events in the (2-6) keV energy interval is: (0.0112 +/- 0.0012) cpd/kg/keV; the measured phase is (144 +/- 7) days and the measured period is (0.998 +/- 0.002) yr, values well in agreement with those expected for DM particles. No systematic or side reaction able to mimic the exploited DM signature has been found or suggested by anyone over more than a decade.
语种	英语
WOS记录号	WOS:000387687600006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260718]
专题	高能物理研究所_粒子天体物理中心
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	Bernabei, R,Belli, P,d'Angelo, S,et al. DAMA/LIBRA phase1 model independent results[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2016,31(31):1642006.
APA	Bernabei, R.,Belli, P.,d'Angelo, S.,Di Marco, A.,Montecchia, F.,...&叶子飘.(2016).DAMA/LIBRA phase1 model independent results.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,31(31),1642006.
MLA	Bernabei, R,et al."DAMA/LIBRA phase1 model independent results".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 31.31(2016):1642006.