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Revisiting the Fermionic Dark Matter Absorption on Electron Target

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arxiv 2201.11497 v1 pith:RINF43DB submitted 2022-01-27 hep-ph hep-ex

Shao-Feng Ge , Xiao-Gang He , Xiao-Dong Ma , Jie Sheng This is my paper
classification hep-phhep-ex
keywords fermionicabsorptionelectronoperatorstargetaroundastrophysicalatomic
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

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 $m_\chi = 59$keV and 105keV, respectively, while the cut-off scale is probed up to around 1TeV. 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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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Dark matter pair absorption

    hep-ph 2025-07 conditional novelty 7.0 of 10

    Pair absorption of two dark matter particles in atomic transitions can probe electroweak-scale couplings of mu-eV-to-eV mass bosonic dark matter, and could bound the cosmic neutrino background overdensity near 10^9.

  2. MeV Electrophilic Axion-like Particles from Sun

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  3. Supernova cooling from neutrino-devouring dark matter

    hep-ph 2025-07 conditional novelty 6.0 of 10

    Supernova cooling excludes fermionic dark matter produced by neutrino scattering down to cross sections of about 10^-58 cm^2 for electrons and 10^-56 cm^2 for nucleons across the keV to 100 MeV mass range.

  4. Probing Light Dark Particles in Neutrino Scattering Experiments

    hep-ph 2026-02 conditional novelty 5.0 of 10

    A dark fermion produced in neutrino scattering could be probed at DUNE's near detector up to cutoff scales near 1 TeV, beyond CHARM II and LEP, while current COHERENT/CONUS+ limits stay below LHC bounds.

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