DAMA annual modulation and mirror Dark Matter

Cerulli, R.; Villar, P.; Cappella, F.; Bernabei, R.; Belli, P.; Incicchitti, A.; Addazi, Andrea; Berezhiani, Zurab

doi:10.1140/epjc/s10052-017-4658-3

Cited by 56 publications

(56 citation statements)

References 118 publications

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“…For each scenario a different halo compositions reported have been considered, with halo temperature in the range 10 4 -10 8 K and with halo velocity from -400 to +300 km/s. The results achieved in [33] for the symmetric mirror DM considered demonstrate that many configurations and halo models favoured by the annual modulation effect observed by DAMA corresponds to √ f ϵ values well compatible with cosmological bounds. It is worth noting that our analysis predict in most halo models an increase 25 of the DM Mirror signal below 2 keV.…”

Section: Mirror Dark Mattersupporting

confidence: 53%

“…The model independent annual modulation effect observed by the DAMA experiments has also been investigated in terms of a mirror-type dark matter candidates in some scenarios [32,33]. In the framework of asymmetric mirror matter, the DM originates from hidden (or shadow) gauge sectors which have particles and interaction content similar to that of ordinary particles.…”

Section: Mirror Dark Mattermentioning

confidence: 99%

“…[33], 3 different scenarios have been considered depending on: i) the adopted quenching factors; ii) either inclusion or not of the channeling effect; iii) either inclusion or not of the Migdal effect. For each scenario a different halo compositions reported have been considered, with halo temperature in the range 10 4 -10 8 K and with halo velocity from -400 to +300 km/s.…”

Section: Mirror Dark Mattermentioning

confidence: 99%

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DAMA/LIBRA Results and Perspectives

et al. 2018

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Abstract. The DAMA/LIBRA experiment (∼ 250 kg sensitive mass composed by highly radio-pure NaI(Tl)) is in data taking in the underground Laboratory of Gran Sasso (LNGS). In its first phase (DAMA/LIBRA-phase1) this experiment and the former DAMA/NaI experiment (∼ 100 kg of highly radio-pure NaI(Tl)) collected data for 14 independent annual cycles, exploiting the model-independent Dark Matter (DM) annual modulation signature (total exposure 1.33 ton × yr). A DM annual modulation effect has been observed at 9.3 σ C.L., supporting the presence of DM particles in the galactic halo. No systematic or side reaction able to mimic the observed DM annual modulation has been found or suggested by anyone. Recent analyses on possible diurnal effects, on the Earth shadowing effect and on possible interpretation in terms of Mirror DM will be mentioned. At present DAMA/LIBRA is running in its phase2 with increased sensitivity.

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Section: Mirror Dark Mattersupporting

confidence: 53%

Section: Mirror Dark Mattermentioning

confidence: 99%

Section: Mirror Dark Mattermentioning

confidence: 99%

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DAMA/LIBRA Results and Perspectives

et al. 2018

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“…The DM candidates considered here have been previously discussed in the Refs. [2,15,16,19,20,21,22,23,24,25,26,27,28,29,30].…”

Section: Discussionmentioning

confidence: 99%

Improved model-dependent corollary analyses after the first six annual cycles of DAMA/LIBRA-phase2

Bernabei¹,

Belli²,

Cappella³

et al. 2019

Nucl. Phys. At. Energy

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Several of the many proposed Dark Matter candidate particles, already investigated with lower exposure and a higher software energy threshold, are further analyzed including the first DAMA/LIBRA-phase2 data release, with an exposure of 1.13 ton × yr and a lower software energy threshold (1 keV). The cumulative exposure above 2 keV considering also DAMA/NaI and DAMA/LIBRA-phase1 results is now 2.46 ton × yr. The analysis permits to constraint the parameters' space of the considered candidates restricting their values -with respect to previous analyses -thanks to the increase of the exposure and to the lower energy threshold.1 Throughout this paper keV means keV electron equivalent, where not otherwise specified.

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“…The interplay of kinetic mixings between three vector fields have interesting cosmological implications e.g. for the direct search of dark matter [57,58] or for generating large-scale magnetic fields due to the relative flow of ordinary and mirror matter components in the early Universe [59].…”

Section: B − L Forces and Neutron-mirror Neutron Oscillationmentioning

confidence: 99%

Gauged $$B-L$$ B - L number and neutron–antineutron oscillation: long-range forces mediated by baryophotons

2017

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Transformation of a neutron to an antineutron n →ñ has not yet been experimentally observed. In principle, it can occur with free neutrons in the vacuum or with neutrons bound inside the nuclei. In a nuclear medium the neutron and the antineutron have different potentials and for that reason n-ñ conversion in nuclei is heavily suppressed. This transformation can also be suppressed for free neutrons in the presence of an environmental vector field that distinguishes the neutron from the antineutron. We consider the case of a gauge field coupled to the B − L charge of the particles (B − L photon), and we show that discovery of n-ñ oscillation in experiment will lead to few order of magnitudes stronger limits on its coupling constant than present limits from the tests of the equivalence principle. If n-ñ oscillation will be discovered via nuclear instability, but not in free neutron oscillations at a corresponding level, this would indicate the presence of such environmental fifth forces. In the latter case the B − L potential can be measurable by varying the external magnetic field for achieving the resonance conditions for n-ñ conversion. As for neutron-mirror neutron oscillation, such potentials should have no effect once the fifth forces are associated to a common quantum number (B − L) − (B − L ) shared by the ordinary and mirror particles.

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DAMA annual modulation and mirror Dark Matter

Cited by 56 publications

References 118 publications

DAMA/LIBRA Results and Perspectives

DAMA/LIBRA Results and Perspectives

Improved model-dependent corollary analyses after the first six annual cycles of DAMA/LIBRA-phase2

Gauged $$B-L$$ B - L number and neutron–antineutron oscillation: long-range forces mediated by baryophotons

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