Performances of the ≃ 100 kg NaI(Tl) set-up of the DAMA experiment at Gran Sasso

Bernabei, R.; Belli, P.; Montecchia, F.; Nicolantonio, W. Di; Ignesti, G.; Incicchitti, A.; Prosperi, D.; Dai, C. J.; Ding, Lei; Kuang, H. H.; M., J.

doi:10.1007/bf03035868

Cited by 149 publications

(159 citation statements)

References 15 publications

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“…The DAMA/NaI set up and its performances are described in [18,[37][38][39], while the DAMA/LIBRA set-up and its performances are described in Ref. [43,45].…”

Section: Ricap-2014mentioning

confidence: 99%

Direct detection of Dark Matter

Belli

2016

EPJ Web of Conferences

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Abstract. An overview of the latest results of Dark Matter direct detection will be summarized, with particular care to the DAMA/LIBRA-phase1 results and the evidence with high confidence level obtained by exploiting the model independent Dark Matter annual modulation signature for the presence of Dark Matter particles in the galactic halo. Results from other experiments using different procedures, different techniques and different target-materials will be shortly discussed. Results, implications and experimental perspectives will be addressed.

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“…The DAMA/NaI set up and its performances are described in [18,[37][38][39], while the DAMA/LIBRA set-up and its performances are described in Ref. [43,45].…”

Section: Ricap-2014mentioning

confidence: 99%

Direct detection of Dark Matter

Belli

2016

EPJ Web of Conferences

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“…The presently running DAMA/LIBRA [1][2][3][4][5][6][7][8][9][10][11] experiment, as the former DAMA/NaI [12][13][14][15][16][17][18][19][20][21][22][23][24][25], has the main aim to investigate the presence of DM particles in the galactic halo by exploiting the model independent DM annual modulation signature (originally suggested in Ref. [26]).…”

Section: Introductionmentioning

confidence: 99%

“…The low background 9265-B53/FL and 9302-A/FL PMTs, developed by EMIElectron Tubes with dedicated R&Ds, were used in the phase1; for details see Ref. [1,14,16] and references therein. The detectors are housed in a sealed low-radioactive copper box installed in the center of a low-radioactive Cu/Pb/Cd-foils/polyethylene/paraffin shield; moreover, about 1 m concrete (made from the Gran Sasso rock material) almost fully surrounds (mostly outside the barrack) this passive shield, acting as a further neutron moderator.…”

Section: Introductionmentioning

confidence: 99%

“…The light response of the detectors during phase1 typically ranges from 5.5 to 7.5 photoelectrons/keV, depending on the detector. The hardware threshold of each PMT is at single photoelectron, while a software energy threshold of 2 keV electron equivalent (hereafter keV) is used [1,14]. Energy calibration with X-rays/γ sources are regularly carried out in the same running condition down to few keV [1]; in particular, double coincidences due to internal X-rays from 40 K (which is at ppt levels in the crystals) provide (when summing the data over long periods) a calibration point at 3.2 keV close to the software energy threshold (for details see Ref.…”

Section: Introductionmentioning

confidence: 99%

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New results and perspectives of DAMA/LIBRA

Bernabei

Belli²,

Cappella

et al. 2014

EPJ Web of Conferences

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Abstract.The results obtained with the total exposure of 1.04 ton × yr collected by DAMA/LIBRA-phase1 deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. during 7 annual cycles are briefly summarized. The DAMA/LIBRA-phase1 and the former DAMA/NaI data (cumulative exposure 1.33 ton × yr, corresponding to 14 annual cycles) give evidence at 9.3 σ 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(Tl) target. The modulation parameters are 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.

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“…The former DAMA/NaI [1,2,3,4,5], and the present DAMA/LIBRA set-ups [6,7], have been developed inside the DAMA project. The DAMA project, mainly based on the development and use of low background scintillators, is also composed by other low background set-ups [8]: i) DAMA/LXe ( 6.5 pure liquid Xenon scintillator); ii) DAMA/R&D, devoted to tests on prototypes and small scale experiments; iii) DAMA/Ge detector for sample measurements.…”

Section: Introductionmentioning

confidence: 99%

First results from DAMA/LIBRA

Belli¹,

Bernabei²,

Montecchia³

et al. 2009

Proceedings of Identification of Dark Matter 2008 — PoS(idm2008)

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The highly radiopure 250 kg NaI(Tl) DAMA/LIBRA set-up is running at the Gran Sasso National Laboratory of the I.N.F.N.. The first results obtained by exploiting over four annual cycles the model independent annual modulation signature for Dark Matter (DM) particles confirm those of the former DAMA/NaI. In particular, the DAMA/NaI and DAMA/LIBRA data satisfy all the many peculiarities of the DM annual modulation signature. Neither systematic effects nor side reactions able to account for the observed modulation amplitude and to contemporaneously satisfy all the several requirements of the DM signature are available. Considering the former DAMA/NaI and the present DAMA/LIBRA data all together (total exposure 0.82 ton×yr), the presence of Dark Matter particles in the galactic halo is supported at 8.2 σ C.L. Identification of dark matter

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Performances of the ≃ 100 kg NaI(Tl) set-up of the DAMA experiment at Gran Sasso

Cited by 149 publications

References 15 publications

Direct detection of Dark Matter

Direct detection of Dark Matter

New results and perspectives of DAMA/LIBRA

First results from DAMA/LIBRA

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