Analytic Approach to Light Dark Matter Propagation

Cappiello, Christopher V.

doi:10.1103/physrevlett.130.221001

Cited by 8 publications

(2 citation statements)

References 109 publications

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“…The Earth attenuation effect can be estimated by solving the one-dimensional energy loss equation [26,27,64], which is appropriate when particles travel in straight lines. Other analytic methods taking into account the deflection of DM particles based on single scattering [65] and the summation of multiple scatterings [66] are also developed. A more sophisticated method is the numerical Monte Carlo simulation [67][68][69][70][71], which simulates the trajectory of DM particles and statistically reconstructs the underground DM flux.…”

Section: Dark Matter Attenuationmentioning

confidence: 99%

Boosted dark matter from Centaurus A and its detection

Xia,

Xing,

2024

J. High Energ. Phys.

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Dark matter can be boosted by high energy particles in astrophysical environments through elastic scattering. We study the production of boosted dark matter via scattering with electrons in the relativistic jet of the closest active galactic nucleus, Centaurus A, and its detection in the Super-Kamiokande experiment. Since there are a huge number of electrons in the jet and dark matter is extremely dense around the supermassive black hole that powers the jet, the number of boosted dark matter is tremendously large. Compared to boosted dark matter from blazars, the dark matter flux from Centaurus A is enhanced due to the proximity of Centaurus A. The constraint on dark matter-electron scattering cross section set by Super-Kamiokande is more stringent, down to ∼ 10−36 cm2 for MeV dark matter.

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Section: Dark Matter Attenuationmentioning

confidence: 99%

Boosted dark matter from Centaurus A and its detection

Xia,

Xing,

2024

J. High Energ. Phys.

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“…In this work, the Earth shielding effect of sub-GeV halo DM is simulated using the DarkProp code [40], which is a general purpose package which supports both relativistic and non-relativistic DM, takes into account the geometry of the Earth, and has the flexibility to customize the DM initial velocity distribution and scattering cross section. There are also other publicly available codes developed to calculate the Earth shielding effect for specific models [6,38,44,49,[52][53][54][55][56]. In the numerical simulation, we sample the initial velocities of halo DM particles at the surface of the Earth according to the standard halo model velocity distribution in the rest frame of the Earth f halo (v + v ⊕ ) given by eq.…”

Section: )mentioning

confidence: 99%

Diurnal modulation of electron recoils from DM-nucleon scattering through the Migdal effect

Qiao,

Xia,

Zhou

2023

J. Cosmol. Astropart. Phys.

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Halo dark matter (DM) particles could lose energy due to the scattering off nuclei within the Earth before reaching the underground detectors of DM direct detection experiments. This Earth shielding effect can result in diurnal modulation of the DM-induced recoil event rates observed underground due to the self-rotation of the Earth. For electron recoil signals from DM-electron scatterings, the current experimental constraints are very stringent such that the diurnal modulation cannot be observed for halo DM. We propose a novel type of diurnal modulation effect: diurnal modulation in electron recoil signals induced by DM-nucleon scattering via the Migdal effect. We set so far the most stringent constraints on DM-nucleon scattering cross section via the Migdal effect for sub-GeV DM using the S2-only data of PandaX-II and PandaX-4T with improved simulations of the Earth shielding effect. Based on the updated constraints, we show that the Migdal effect induced diurnal modulation of electron events can still be significant in the low energy region, and can be probed by experiments such as PandaX-4T in the near future.

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Transmon Qubit constraints on dark matter-nucleon scattering

Das,

Kurinsky,

Leane

2024

J. High Energ. Phys.

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We recently pointed out that power measurements of single quasiparticle devices can be used to detect dark matter. These devices have the lowest known energy thresholds, far surpassing standard direct detection experiments, requiring energy deposition above only about an meV. We calculate dark matter induced quasiparticle densities in transmon qubits, and use the latest transmon qubit measurements that provide one of the strongest existing lab-based bounds on dark matter-nucleon scattering below about 100 MeV. We strongly constrain sub-component dark matter, using both a dark matter population thermalized in the Earth as well as the dark matter wind from the Galactic halo. We demonstrate future potential sensitivities using devices with low quasiparticle densities.

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Analytic Approach to Light Dark Matter Propagation

Cited by 8 publications

References 109 publications

Boosted dark matter from Centaurus A and its detection

Boosted dark matter from Centaurus A and its detection

Diurnal modulation of electron recoils from DM-nucleon scattering through the Migdal effect

Transmon Qubit constraints on dark matter-nucleon scattering

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