Halo-independent analysis of direct dark matter detection through electron scattering

Chen, Muping; Gelmini, Graciela B.; Takhistov, Volodymyr

doi:10.1088/1475-7516/2021/12/048

Cited by 6 publications

(4 citation statements)

References 105 publications

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“…therefore be of strong interest to build an interactive community-maintained database of various parameterizations of f χ (v) and ρ χ beyond the SHM, which could potentially be used by experimental collaborations to show the range of systematic uncertainty on exclusion limits. Alternatively, halo-independent methods have also been developed, which can avoid the uncertainties introduced by such models and which apply to both DM-nuclear and DM-electron scattering [16][17][18]. Indeed, both methods (astrophysically-informed halo models and halo-independent) are complementary for the analysis of putative signals, and we encourage both the theoretical and experimental communities to develop both analysis methods to the extent possible.…”

Section: Modeling the Dm Phase Space Distributionmentioning

confidence: 99%

Snowmass2021 Cosmic Frontier: Modeling, statistics, simulations, and computing needs for direct dark matter detection

Kahn¹,

Monzani²,

Palladino³

et al. 2022

Preprint

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Section: Modeling the Dm Phase Space Distributionmentioning

confidence: 99%

Snowmass2021 Cosmic Frontier: Modeling, statistics, simulations, and computing needs for direct dark matter detection

Kahn¹,

Monzani²,

Palladino³

et al. 2022

Preprint

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“…Instead, the rate involves a convolution of the electron wavefunction with the halo velocity distribution. However, it is still possible to extend halo-independent techniques to the case of electron scattering [17,18].…”

Section: Jcap03(2024)047mentioning

confidence: 99%

Extracting halo independent information from dark matter electron scattering data

Bernreuther,

Fox,

Lillard

et al. 2024

J. Cosmol. Astropart. Phys.

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Direct detection experiments and the interpretation of their results are sensitive to the velocity structure of the dark matter in our galactic halo. In this work, we extend the formalism that deals with such astrophysics-driven uncertainties, originally introduced in the context of dark-matter-nuclear scattering, to include dark-matter-electron scattering interactions. Using mock data, we demonstrate that the ability to determine the correct dark matter mass and velocity distribution is depleted for recoil spectra which only populate a few low-lying bins, such as models involving a light mediator. We also demonstrate how this formalism allows one to test the compatibility of existing experimental data sets (e.g. SENSEI and EDELWEISS), as well as make predictions for possible future experiments (e.g. GaAs-based detectors).

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“…[72,74,75] in the context of ER (see ref. [164] for halo independent analysis). The time-dependent Earth's velocity is represented by u E (t) which leads to the well-known annual modulation of the signal.…”

Section: Jhep02(2023)200mentioning

confidence: 99%

Dark matter substructures affect dark matter-electron scattering in xenon-based direct detection experiments

Maity

Laha

2023

J. High Energ. Phys.

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Recent sky surveys have discovered a large number of stellar substructures. It is highly likely that there are dark matter (DM) counterparts to these stellar substructures. We examine the implications of DM substructures for electron recoil (ER) direct detection (DD) rates in dual phase xenon experiments. We have utilized the results of the LAMOST survey and considered a few benchmark substructures in our analysis. Assuming that these substructures constitute 10% of the local DM density, we study the discovery limits of DM-electron scattering cross sections considering one kg-year exposure and 1, 2, and 3 electron thresholds. With this exposure and threshold, it is possible to observe the effect of the considered DM substructure for the currently allowed parameter space. We also explore the sensitivity of these experiments in resolving the DM substructure fraction. For all the considered cases, we observe that DM having mass $$ \mathcal{O}(10) $$ O 10 MeV has a better prospect in resolving substructure fraction as compared to $$ \mathcal{O}(100) $$ O 100 MeV scale DM. We also find that within the currently allowed DM-electron scattering cross-section; these experiments can resolve the substructure fraction (provided it has a non-negligible contribution to the local DM density) with good accuracy for $$ \mathcal{O}(10) $$ O 10 MeV DM mass with one electron threshold.

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Halo-independent analysis of direct dark matter detection through electron scattering

Cited by 6 publications

References 105 publications

Snowmass2021 Cosmic Frontier: Modeling, statistics, simulations, and computing needs for direct dark matter detection

Snowmass2021 Cosmic Frontier: Modeling, statistics, simulations, and computing needs for direct dark matter detection

Extracting halo independent information from dark matter electron scattering data

Dark matter substructures affect dark matter-electron scattering in xenon-based direct detection experiments

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