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DAMA results at Gran Sasso underground lab
Bernabei; R.; Belli; P.; Cappella; F.; Caracciolo; V.; Cerulli; R.; Dai; C. J.; d'Angelo; A.; d'Angelo; S.; Di Marco; A.; He; H. L.; Incicchitti; A.; Kuang; H. H.; Ma; X. H.; Montecchia; F.; Sheng; X. D.; Wang; R. G.; Ye; Z. P.; 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)
2015
发表期刊NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS
卷号263页码:87-92
文章类型Proceedings Paper
摘要The results obtained with the total exposure of 1.04 ton x yr collected by DAMA/LrBRA-phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. during 7 annual cycles are summarized. The DAMA/LLBRA-phase1 and the former DAMA/NaI data (cumulative exposure 1.33 ton x yr, corresponding to 14 annual cycles) give evidence at 9.3 sigma C.L. for the presence of Dark Matter (DM) particles in the galactic halo, on the basis of the exploited model independent DM annual modulation signature by using highly radio-pure NaI(T1) target. The modulation amplitude of the single-hit 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. Some of the perspectives of the presently running DAMA/LIBRA-phase2 are outlined.
关键词Dark Matter Annual modulation signature low background detectors
DOI10.1016/j.nuclphysbps.2015.04.016
收录类别CPCI
WOS记录号WOS:000358702400016
引用统计
被引频次:4[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/311005/228889
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
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Bernabei,R.,Belli,et al. DAMA results at Gran Sasso underground lab[J]. NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS,2015,263:87-92.
APA Bernabei.,R..,Belli.,P..,Cappella.,...&叶子飘.(2015).DAMA results at Gran Sasso underground lab.NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS,263,87-92.
MLA Bernabei,et al."DAMA results at Gran Sasso underground lab".NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS 263(2015):87-92.
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