DAMA/LIBRA results and perspectives

Bernabei, R.; Belli, P.; d’Angelo, S.; Marco, Alessandro Di; Montecchia, F.; d’Angelo, A.; Incicchitti, A.; Cappella, F.; Caracciolo, V.; Cerulli, R.; Dai, C.J.; He, H.; Kuang, H. H.; Ma, Xiaohua; Sheng, X. D.; Wang, Ruiguang; Ye, Z.P.

doi:10.1051/epjconf/201713605001

Cited by 10 publications

(7 citation statements)

References 44 publications

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“…In fact, entire paper [2] was devoted to analysis of a possible role of neutrino-induced and muon-induced neutrons. These possibilities were discarded in [1][2][3][4] based on the following arguments:…”

Section: Comments On DL Argumentsmentioning

confidence: 99%

“…Is the corresponding neutrino-induced neutron's intensity is sufficient 6 to explain DL modulation? The DL argued that the answer is "No" [1][2][3][4]. However, the DL arguments on the neutron's intensity were challenged in [7].…”

Section: Comments On DL Argumentsmentioning

confidence: 99%

“…The DAMA/LIBRA (DL) experiment [1][2][3][4] claims the observation for an annual modulation in the (1 − 6) keV energy range at 9.5σ C.L. The C.L.…”

Section: Introductionmentioning

confidence: 99%

“…In section IV we comment on DL arguments [1][2][3][4] suggesting the irrelevance of the induced neutron flux (due to muons and neutrinos). We explicitly show why DL ar-arXiv:1909.05320v2 [hep-ph] 20 Sep 2019 guments are not applicable for our proposal (1) with its truly genuine DM nature, though manifested indirectly.…”

Section: Introductionmentioning

confidence: 99%

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DAMA/LIBRA annual modulation and axion quark nugget dark matter model

Zhitnitsky

2020

Phys. Rev. D

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The DAMA/LIBRA experiment shows 9.5σ evidence for an annual modulation in the (1 − 6) keV energy range, strongly suggesting that the observed modulation has the dark matter origin. However, the conventional interpretation in terms of WIMP-nucleon interaction is excluded by other experiments. We propose an alternative source of modulation in the form of neutrons, which have been liberated from surrounding material. Our computations are based on the so-called Axion Quark Nugget (AQN) dark matter model, which was originally invented long ago to explain the similarity between the dark and visible cosmological matter densities, i.e. Ω dark ∼ Ω visible . In our proposal the annual modulation is shown to be generated in keV energy range which is consistent with DL observation in (1 − 6) keV range. This keV energy scale in our proposal is mostly determined by spectral properties of the neutrinos emitted by the AQN dark matter particles, while the absence of the modulation with energies above 6 keV is explained by a sharp cutoff in the neutrino's energy spectrum at ∼ 15 MeV. This proposal can be directly tested by COSINE-100, ANAIS-112 and CYGNO experiments. It can be also tested by studying the correlations between the signals from these experiments and nearby axion search detectors.

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Section: Comments On DL Argumentsmentioning

confidence: 99%

Section: Comments On DL Argumentsmentioning

confidence: 99%

“…The DAMA/LIBRA (DL) experiment [1][2][3][4] claims the observation for an annual modulation in the (1 − 6) keV energy range at 9.5σ C.L. The C.L.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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DAMA/LIBRA annual modulation and axion quark nugget dark matter model

Zhitnitsky

2020

Phys. Rev. D

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“…A great variety of direct dark matter searches, utilizing different technologies, have been running in recent years and are planned for the future. These include cryogenic bolometers with ionization or scintillation detection (CDMS [26,27,28,29], SuperCDMS [30], EDELWEISS [31], CRESST [32]), sodium/cesium iodide scintillation detectors (DAMA/LIBRA [33,34,35], KIMS [36]), bubble chambers (PICASSO [37], COUPP [38,39], PICO [40,41]), point contact germanium detectors (CoGeNT [42,43,44,45], MALBEK [46]), detectors using liquid xenon (ZEPLIN [47], XENON-100 [48,49,50], LUX [51,52,53,54], XMASS [55], PandaX-I [56], [16] and adapted to include the most recent results from references cited elsewhere in this section). The mean exclusion sensitivities for the full exposure of DarkSide-50, for DarkSide-20k, and for Argo (accounting for the ν-induced background) are shown.…”

Section: Introductionmentioning

confidence: 99%

DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS

Aalseth,

Acerbi,

Agnes

et al. 2017

Preprint

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Building on the successful experience in operating the DarkSide-50 detector, the Dark-Side Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a two-phase Liquid Argon Time Projection Chamber (LAr TPC) with an active (fiducial) mass of 23 t (20 t). The DarkSide-20k LAr TPC will be deployed within a shield/veto with a spherical Liquid Scintillator Veto (LSV) inside a cylindrical Water Cherenkov Veto (WCV). Operation of DarkSide-50 demonstrated a major reduction in the dominant 39 Ar background when using argon extracted from an underground source, before applying pulse shape analysis. Data from DarkSide-50, in combination with MC simulation and analytical modeling, shows that a rejection factor for discrimination between electron and nuclear recoils of >3 × 10 9 is achievable. This, along with the use of the veto system, is the key to unlocking the path to large LAr TPC detector masses, while maintaining an "instrumental background-free" experiment, an experiment in which less than <0.1 events (other than ν-induced nuclear recoils) is expected to occur within the WIMP search region during the planned exposure. DarkSide-20k will have ultra-low backgrounds than can be measured in situ. This will give sensitivity to WIMP-nucleon cross sections of 1.2 × 10 −47 cm 2 (1.1 × 10 −46 cm 2 ) for WIMPs of 1 TeV/c 2 (10 TeV/c 2 ) mass, to be achieved during a 5 yr run producing an exposure of 100 t yr free from any instrumental background. DarkSide-20k could then extend its operation to a decade, increasing the exposure to 200 t yr, reaching a sensitivity of 7.4 × 10 −48 cm 2 (6.9 × 10 −47 cm 2 ) for WIMPs of 1 TeV/c 2 (10 TeV/c 2 ) mass.

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Results and prospects of deep under-ground, under-water and under-ice experiments

Zornoza¹

2014

Nuclear Instruments and Methods in Physics Research Section A:

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Astroparticle experiments have provided a long list of achievements both for particle physics and astrophysics. Many of these experiments require to be protected from the background produced by cosmic rays in the atmosphere. The main options for such protection are to build detectors deep under ground (mines, tunnels) or in the deep sea or antarctic ice. In this proceeding we review the main results shown in the RICAP 2013 conference related with these kind of experiments and the prospects for the future.

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DAMA/LIBRA results and perspectives

Cited by 10 publications

References 44 publications

DAMA/LIBRA annual modulation and axion quark nugget dark matter model

DAMA/LIBRA annual modulation and axion quark nugget dark matter model

DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS

Results and prospects of deep under-ground, under-water and under-ice experiments

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