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First Model Independent Results from DAMA/LIBRACPhase2
Bernabei, Rita; Belli, Pierluigi; Bussolotti, Andrea; Cappella, Fabio; Caracciolo, Vincenzo; Cerulli, Riccardo; Dai, Chang-Jiang; d'Angelo, Annelisa; Di Marco, Alessandro; He, Hui-Lin; Antonella Incicchitti; Xin-Hua Ma; Angelo Mattei; Vittorio Merlo; Francesco Montecchia; 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)
2018
Source PublicationUNIVERSE
ISSN2218-1997
Volume4Issue:11Pages:116
SubtypeArticle
AbstractThe 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.
Keyworddark matter low background NaI(Tl) scintillators model-independent annual modulation signature
DOI10.3390/universe4110116
WOS KeywordINTERACTING MASSIVE PARTICLES ; ANNUAL MODULATION DATA ; DWARF TIDAL STREAM ; NAI(TL) SET-UP ; DARK-MATTER ; GALACTIC HALO ; SEARCH
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000451167700006
ADS Bibcode2018Univ....4..116B
AXRIV CODE1805
inspireid1675037
Citation statistics
Cited Times:69 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286725
Collection粒子天体物理中心
中国科学院高能物理研究所_教育处
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Bernabei, Rita,Belli, Pierluigi,Bussolotti, Andrea,et al. First Model Independent Results from DAMA/LIBRACPhase2[J]. UNIVERSE,2018,4(11):116.
APA Bernabei, Rita.,Belli, Pierluigi.,Bussolotti, Andrea.,Cappella, Fabio.,Caracciolo, Vincenzo.,...&叶子飘.(2018).First Model Independent Results from DAMA/LIBRACPhase2.UNIVERSE,4(11),116.
MLA Bernabei, Rita,et al."First Model Independent Results from DAMA/LIBRACPhase2".UNIVERSE 4.11(2018):116.
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