Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector

Adhikari, P.; Ajaj, Rahaf; Auty, D. J.; Bina, C. E.; Bonivento, W.; Boulay, M. G.; Cadeddu, M.; Cai, B.; Cárdenas‐Montes, Miguel; Cavuoti, S.; Chen, Y.; Cleveland, B. T.; Corning, J.; Daugherty, S. J.; DelGobbo, P.; Stéfano, P. Di; Doria, L.; Dunford, M.; Erlandson, A.; Farahani, S. S.; Fatemighomi, N.; Fiorillo, G.; Gallacher, D.; Garcés, E. A.; Abia, P. García; Garg, Sakshi; Giampa, P.; Goeldi, D.; Gorel, P.; Graham, K.; Grobov, A.; Hallin, A. L.; Hamstra, M.; Hugues, T.; Ilyasov, A.; Joy, A.; Jigmeddorj, B.; Jillings, C.; Kamaev, O.; Kaur, G.; Kemp, A.; Kochanek, I.; Kuźniak, M.; Laí, M.; Langrock, S.; Lehnert, B.; Levashko, N.; Li, X.; Litvinov, O.; Lock, James A.; Longo, Giuseppe; Machulin, I.; McDonald, A. B.; McElroy, Thomas; McLaughlin, J.; Mielnichuk, C.; Monroe, J.; Oliviéro, G.; Pal, S.; Peeters, S. J. M.; Pesudo, V.; Piro, M.‐C.; Pollmann, T. R.; Rand, E. T.; Rethmeier, C.; Retière, F.; Rodríguez-García, Iñaki; Roszkowski, Leszek; García, E.; Sánchez-Pastor, T.; Santorelli, R.; Sinclair, D.; Skensved, P.; Smith, B. C.; Smith, N. J. T.; Sonley, T. J.; Stainforth, R.; Stringer, M.; Sur, B.; Vázquez‐Jáuregui, E.; Viel, S.; Vincent, Aaron C.; Walding, J.; Waqar, Moaz; Ward, M.; Westerdale, S.; Willis, J. L.; Zuñiga-Reyes, A.

doi:10.1103/physrevd.102.082001

Cited by 41 publications

(37 citation statements)

References 72 publications

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“…Recent observations call into question the adequacy of the SHM itself, as evidence for several kinematically distinctive substructures have emerged from studies of data released by the Gaia mission [50] and the Sloan Digital Sky Survey (SDSS) [51]. These substructures are likely the result of the Milky Way's formation history and merger events with other galaxies, and may include the Gaia Sausage (or Gaia Enceladus) [44,[52][53][54][55], among several others [42,[56][57][58][59][60][61]. The effects of such substructures on direct detection experiments are demonstrated in Refs.…”

Section: Experimenter Bias Mitigationmentioning

confidence: 99%

Recommended conventions for reporting results from direct dark matter searches

et al. 2021

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The field of dark matter detection is a highly visible and highly competitive one. In this paper, we propose recommendations for presenting dark matter direct detection results particularly suited for weak-scale dark matter searches, although we believe the spirit of the recommendations can apply more broadly to searches for other dark matter candidates, such as very light dark matter or axions. To translate experimental data into a final published result, direct detection collaborations must make a series of choices in their analysis, ranging from how to model astrophysical parameters to how to make statistical inferences based on observed data. While many collaborations follow a standard set of recommendations in some areas, for example the expected flux of dark matter particles (to a large degree based on a paper from Lewin and Smith in 1995), in other areas, particularly in statistical inference, they have taken different approaches, often from result to result by the same collaboration. We set out a number of recommendations on how to apply the now commonly used Profile Likelihood Ratio method to direct detection data. In addition, updated recommendations for the Standard Halo Model astrophysical parameters and relevant neutrino fluxes are provided. The authors of this note include members of the DAMIC, DarkSide, DARWIN, DEAP, LZ, NEWS-G, PandaX, PICO, SBC, SENSEI, SuperCDMS, and XENON collaborations, and these collaborations provided input to the recommendations laid out here. Wide-spread adoption of these recommendations will make it easier to compare and combine future dark matter results.

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Section: Experimenter Bias Mitigationmentioning

confidence: 99%

Recommended conventions for reporting results from direct dark matter searches

et al. 2021

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“…Note that one can just as easily use isoscalars and isovectors in place of the p and n for the proton and neutron. This is also a valid approach, and has been done in analyses by several other experiments as it allows for direct comparisons between experiments with different target compositions [47][48][49]. However for consistency with previous LUX results (Ref.…”

Section: A Signal Modelingmentioning

confidence: 81%

“…The improved sensitivity of these results is greater than that expected solely from the increased exposure, highlighting the benefit from reassessing data selection criteria and background models for the extended ROI and the use of five-dimensional PLR framework. Recent competitive analyses report their results using the fisoscalar; isovectorg basis, such as CDMS, XENON100, DEAP-3600, and PandaX-II [47][48][49]58], which prohibits direct comparison. However, we note that for xenon targets, the expected event rates for WIMP-n interactions are typically larger than that for WIMP-p interactions, but the isoscalar formulation splits the differences between these.…”

Section: Resultsmentioning

confidence: 99%

Constraints on effective field theory couplings using 311.2 days of LUX data

Akerib¹,

Alsum²,

Araújo³

et al. 2021

Phys. Rev. D

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We report here the results of a nonrelativistic effective field theory (EFT) WIMP search analysis using LUX data. We build upon previous LUX analyses by extending the search window to include nuclear recoil energies up to ∼180 keV nr , requiring a reassessment of data quality criteria and background models. In order to use an unbinned profile likelihood statistical framework, the development of new analysis techniques to account for higher-energy backgrounds was required. With a 3.14 × 10 4 kg • day exposure using data collected between 2014 and 2016, we find our data is compatible with the background expectation and set 90% C.L. exclusion limits on nonrelativistic EFT WIMP-nucleon couplings, improving upon previous LUX results and providing constraints on a EFT WIMP interactions using the fneutron; protong interaction basis. Additionally, we report exclusion limits on inelastic EFT WIMPisoscalar recoils that are competitive and world-leading for several interaction operators.

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“…For simplicity we only present results for DM particles with spin = 1 2 . The limits are compared to the direct detection experiments CRESST-II [3], Xenon100 [4], DEAP-3600 [6], CDMS II and SuperCDMS [5]. All exclusion limits are at 90 % confidence level.…”

Section: Limits On the Coupling Constantsmentioning

confidence: 99%

“…However, there also are approaches to cover the full set of operators in a non-relativistic effective theory, including momentum-and velocity-dependent operators [2]. In recent years, there have been several efforts from direct detection experiments like CRESST-II [3], Xenon100 [4], SuperCDMS [5] and DEAP-3600 [6] to constrain the coupling constants of the theory. With the IceCube Neutrino Observatory we are able to set limits via indirect detection based on DM capture in the Sun.…”

Section: Introductionmentioning

confidence: 99%

Constraining non-standard Dark Matter-Nucleon Interactions with IceCube

Peters¹,

Abbasi²,

Ackermann³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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After scattering off nuclei in the Sun, dark matter particles can be gravitationally captured by the Sun, accumulate in the Sun's core and annihilate into Standard Model particles. Neutrinos originating from these annihilations can be detected by the IceCube Neutrino Observatory, located at the South Pole. Due to the non-observation of these neutrinos, constraints on the standard spin-dependent and spin-independent dark matter-nucleon scattering cross sections have been placed. Based on these constraints, we present upper limits on the coupling constants of the non-relativistic effective theory of dark matter-nucleon interactions, including velocity and momentum dependent interactions.

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Constraints on dark matter-nucleon effective couplings in the presence of kinematically distinct halo substructures using the DEAP-3600 detector

Cited by 41 publications

References 72 publications

Recommended conventions for reporting results from direct dark matter searches

Recommended conventions for reporting results from direct dark matter searches

Constraints on effective field theory couplings using 311.2 days of LUX data

Constraining non-standard Dark Matter-Nucleon Interactions with IceCube

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