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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; Cerulli, R; Dai, CJ; He, HL; Kuang, HH; Ma, XH; Sheng, XD; Wang, RG; Ye, ZP; Dai ZJ(戴长江); He HL(何会林); Kuang HH(况浩怀); Ma XH(马欣华); Sheng XD(盛祥东); Wang RG(王瑞光); Ye ZP(叶子飘)
2016
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS A
卷号31期号:31页码:1642006
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.
文章类型Article
关键词Dark Matter direct detection annual modulation
DOI10.1142/s0217751x16420069
关键词[WOS]ANNUAL MODULATION SIGNATURE ; INELASTIC DARK-MATTER ; NAI(TL) SET-UP ; GRAN SASSO ; SPECTRAL-ANALYSIS ; NO ROLE ; SEARCH ; FRAMEWORK ; DAMA/NAI ; MUONS
语种英语
WOS记录号WOS:000387687600006
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260718
专题粒子天体物理中心
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
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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.
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