Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection

Wang, Wenyu; Wu, Lei; Yang, Jin Min; Zhou, Hang; Zhu, B.

doi:10.1007/jhep12(2020)072

Cited by 42 publications

(10 citation statements)

References 51 publications

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“…In the last process, a small but irreducible component of DM (referred to as CRDM) can obtain very high kinetic energies. They can scatter again off the target nuclei in the detectors of the underground DM direct detection experiments, and deposit sufficient energy to cross the detection threshold, which greatly extends the sensitivity of the current experiments to sub-GeV DM particles [14][15][16][17][18][19][20][21][22][23][24]. In this approach the constraints on a constant DM-nucleon (DM-electron) spin-independent scattering cross section can reach ∼ 10 −31 (10 −34 ) cm 2 for DM particle mass down to at least ∼ 0.1 MeV (∼ 1 eV) [14,15] (for constraints on energydependent and inelastic scattering cross sections, see e.g.…”

Section: Introductionmentioning

confidence: 92%

Production and attenuation of cosmic-ray boosted dark matter

Xia,

Xu,

Zhou

2021

Preprint

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Light sub-GeV halo dark matter (DM) particles up-scattered by high-energy cosmic-rays (CRs) (referred to as CRDM) can be energetic and become detectable by conventional DM direct detection experiments. We perform a refined analysis on the exclusion bounds of the spin-independent DMnucleon scattering cross section σ χp in this approach. For the exclusion lower bounds, we determine the parameter of the effective distance D eff for CRDM production using spatial-dependent CR fluxes and including the contributions from the major heavy CR nuclear species. We obtain D eff 9 kpc for CRDM particles with kinetic energy above ∼ 1 GeV, which pushes the corresponding exclusion lower bounds down to σ χp ∼ 4 × 10 −32 cm 2 for DM particle mass at MeV scale and below. For the exclusion upper bounds from Earth attenuation, previous estimations neglecting the nuclear form factor leaded to typical exclusion upper bounds of σ χp ∼ O(10 −28 ) cm 2 from the XENON1T data. Using both the analytic and numerical approaches, we show that for CRDM particles, the presence of the nuclear form factor strongly suppresses the effect of Earth attenuation. Consequently, the cross section that can be excluded by the XENON1T data can be a few orders of magnitude higher, which closes the gap in the cross sections excluded by the XENON1T experiment and that by the astrophysical measurements such that for the cosmic microwave background (CMB), galactic gas cloud cooling, and structure formation, etc..

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Section: Introductionmentioning

confidence: 92%

Production and attenuation of cosmic-ray boosted dark matter

Xia,

Xu,

Zhou

2021

Preprint

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“…The recent idea that DM might be boosted by scattering with high-energy particles is applied in various cases, providing interesting phenomenology and promising detection perspectives, i.e. [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Supernova Boosted Axion Dark Mattermentioning

confidence: 99%

Detecting neutrino-boosted axion dark matter in the MeV gap

Luque¹

2022

Preprint

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The elusive nature of Dark Matter (DM) remains a mystery far from being solved. A vast effort is dedicated to search for signatures of feeble DM interactions with Standard Model particles. In this work, we explore the signatures of axion DM boosted by interactions with Supernova neutrinos: Neutrino-Boosted Axion DM (νBADM). We focus on νBADM converting into photons in the Galactic magnetic field, generating a peculiar gamma-ray flux. This signal falls in the poorly explored MeV energy range, that will be probed by next generation gamma-ray missions. Once more, astrophysical searches might act as a probe of fundamental physics, unveiling the nature and properties of DM.

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“…Several possibilities have been discussed in the literature. The nonrelativistic DM particles can be boosted by the cosmic rays to gain sufficient energy [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64]. This cosmic ray boosted DM (CRDM) scenario can happen as long as DM interacts with SM particles which is exactly the foundation of DM direct detection.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the Fermionic Dark Matter Absorption on Electron Target

Ge,

He,

et al. 2022

Preprint

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We perform a systematic study of the fermionic DM absorption interactions on electron target in the context of effective field theory. The fermionic DM absorption is not just sensitive to sub-MeV DM with efficient energy release, but also gives a unique signature with clear peak in the electron recoil spectrum whose shape is largely determined by the atomic effects. Fitting with the Xenon1T and PandaX-II data prefers DM mass at m χ = 59 keV and 105 keV, respectively, while the cut-off scale is probed up to around 1 TeV. The DM overproduction in the early Universe, the invisible decay effect on the cosmological evolution, and the astrophysical X(gamma)-ray from the DM visible decays are thoroughly explored to give up-to-date constraints. With stringent bounds on the tensor and pseudo-scalar operators, the other fermionic DM operators are of particular interest at tonne-scale direct detection experiments such as PandaX-4T, XENONnT, and LZ.

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Cosmic ray boosted sub-GeV gravitationally interacting dark matter in direct detection

Cited by 42 publications

References 51 publications

Production and attenuation of cosmic-ray boosted dark matter

Production and attenuation of cosmic-ray boosted dark matter

Detecting neutrino-boosted axion dark matter in the MeV gap

Revisiting the Fermionic Dark Matter Absorption on Electron Target

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