Search for annual and diurnal rate modulations in the LUX experiment

Akerib, D. S.; Alsum, S.; Araújo, H. M.; Bai, X.; Balajthy, J.; Beltrame, P.; Bernard, E. P.; Bernstein, Adam; Biesiadzinski, T. P.; Boulton, E. M.; Boxer, B.; Brás, P.; Burdin, S.; Byram, D.; Carmona-Benitez, M. C.; Chan, C.; Cutter, J. E.; Davison, T. J. R.; Druszkiewicz, E.; Fallon, S. R.; Fan, A.; Fiorucci, S.; Gaitskell, R. J.; Genovesi, J.; Ghag, C.; Gilchriese, M.; Gwilliam, C. B.; Hall, C.; Haselschwardt, S. J.; Hertel, S. A.; Hogan, D. P.; Horn, M.; Huang, Di; Ignarra, C. M.; Jacobsen, R. G.; Ji, W.; Kamdin, K.; Kazkaz, K.; Khaitan, D.; Knoche, R.; Korolkova, E. V.; Kravitz, S.; Kudryavtsev, V. A.; Lenardo, B. G.; Lesko, K. T.; Liao, J.; Lin, J.; Lindote, A.; Lopes, M. I.; Manalaysay, A.; Mannino, R. L.; Marangou, N.; Marzioni, M. F.; McKinsey, D. N.; Mei, D. M.; Moongweluwan, M.; Morad, J. A.; Murphy, A. St. J.; Nehrkorn, C.; Nelson, H. N.; Neves, F.; Oliver-Mallory, K. C.; Palladino, K. J.; Pease, E. K.; Rischbieter, G. R. C.; Rhyne, C.; Rossiter, P.; Shaw, S.; Shutt, T.; Silva, C.; Solmaz, M.; Solovov, V.; Sørensen, P.; Sumner, T. J.; Szydagis, M.; Taylor, D. J.; Taylor, WC; Tennyson, B. P.; Terman, P. A.; Tiedt, D. R.; To, W. H.; Tripathi, M.; Tvrznikova, L.; Utku, U.; Uvarov, S.; Velan, V.; Verbus, J.R.; Webb, R.; White, J. T.; Whitis, T. J.; Witherell, M. S.; Wolfs, F. L. H.; Woodward, David I.; Xu, J.; Yazdani, K.; Zhang, C.

doi:10.1103/physrevd.98.062005

Cited by 47 publications

(45 citation statements)

References 39 publications

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“…Thermalized due their elastic collisions with matter, SIMPs are too slow to cause in the underground detectors any significant effect of nuclear recoil, on which the strategy of direct WIMP searches is based. However, a specific type of inelastic processes, combined with annual modulation of SIMP concentration can explain positive results of DAMA/NaI and DAMA/LIBRA experiments [148][149][150][151][152] in their apparent contradiction with negative results of other experiments [153][154][155][156][157].…”

Section: Probes For Hadronic Dark Mattermentioning

confidence: 99%

Hadronic and Hadron-Like Physics of Dark Matter

et al. 2019

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The problems of simple elementary weakly interacting massive particles (WIMPs) appeal to extend the physical basis for nonbaryonic dark matter. Such extension involves more sophisticated dark matter candidates from physics beyond the Standard Model (BSM) of elementary particles. We discuss several models of dark matter, predicting new colored, hyper-colored or techni-colored particles and their accelerator and non-accelerator probes. The nontrivial properties of the proposed dark matter candidates can shed new light on the dark matter physics. They provide interesting solutions for the puzzles of direct and indirect dark matter search. *

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Section: Probes For Hadronic Dark Mattermentioning

confidence: 99%

Hadronic and Hadron-Like Physics of Dark Matter

et al. 2019

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“…Dual-phase xenon time projection chambers (TPCs) have demonstrated exceptionally high sensitivities to various dark matter candidates, including both weakly interacting massive particles (WIMPs) [1][2][3] and leptophilic dark matter [4,5]. They also offer a promising, scalable method for measurement of coherent scattering of reactor antineutrinos [6].…”

Section: Introductionmentioning

confidence: 99%

Electron extraction efficiency study for dual-phase xenon dark matter experiments

Pereverzev

Lenardo

et al. 2019

Phys. Rev. D

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Dual-phase xenon detectors are widely used in dark matter direct detection experiments, and have demonstrated the highest sensitivities to a variety of dark matter interactions. However, a key component of the dual-phase detector technology-the efficiency of charge extraction from liquid xenon into gas-has not been well characterized. In this paper, we report a new measurement of the electron extraction efficiency (EEE) in a small xenon detector using two mono-energetic decay features of 37 Ar. By achieving stable operation at very high voltages, we measured the EEE values at the highest extraction electric field strength reported to date. For the first time, an apparent saturation of the EEE is observed over a large range of electric field; between 7.5 kV/cm and 10.4 kV/cm extraction field in the liquid xenon the EEE stays stable at the level of 1%(kV/cm) −1 . In the context of electron transport models developed for xenon, we discuss how the observed saturation may help calibrate this relative EEE measurement to the absolute EEE values. In addition, we present the implications of this result not only to current and future xenon-based dark matter searches, but also to xenon-based searches for coherent elastic neutrino-nucleus scatters.

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“…As such, interpretation in terms of light WIMPs requires non-trivial calculations of the atomic structure and ionisation rates. Finally, we note that there are several ongoing experiments [27][28][29][30][31][32][33][34] and proposals [35][36][37][38][39][40][41] to search for light WIMPs in direct detection experiments. We also note that weak evidence for annual modulation at 2 keV from the COSINE collaboration has been recently made public [42] (see also Ref.…”

Section: Introductionmentioning

confidence: 99%

Electron-interacting dark matter: Implications from DAMA/LIBRA-phase2 and prospects for liquid xenon detectors and NaI detectors

Roberts

Flambaum

2019

Phys. Rev. D

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We investigate the possibility for the direct detection of low mass (GeV scale) WIMP dark matter in scintillation experiments. Such WIMPs are typically too light to leave appreciable nuclear recoils, but may be detected via their scattering off atomic electrons. In particular, the DAMA Collaboration [R. Bernabei et al., Nucl. Phys. At. Energy 19, 307 (2018)] has recently presented strong evidence of an annual modulation in the scintillation rate observed at energies as low as 1 keV. Despite a strong enhancement in the calculated event rate at low energies, we find that an interpretation in terms of electron-interacting WIMPs cannot be consistent with existing constraints. We also demonstrate the importance of correct treatment of the atomic wavefunctions, and show the resulting event rate is very sensitive to the low-energy performance of the detectors, meaning it is crucial that the detector uncertainties be taken into account. Finally, we demonstrate that the potential scintillation event rate can be much larger than may otherwise be expected, meaning that competitive searches can be performed for mχ ∼ GeV scale WIMPs using the conventional prompt (S1) scintillation signals. This is important given the recent and upcoming very large liquid xenon detectors.

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Search for annual and diurnal rate modulations in the LUX experiment

Cited by 47 publications

References 39 publications

Hadronic and Hadron-Like Physics of Dark Matter

Hadronic and Hadron-Like Physics of Dark Matter

Electron extraction efficiency study for dual-phase xenon dark matter experiments

Electron-interacting dark matter: Implications from DAMA/LIBRA-phase2 and prospects for liquid xenon detectors and NaI detectors

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