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Exotic Dark Matter Search with the CDEX-10 Experiment at China's Jinping Underground Laboratory.
- Source :
-
Physical review letters [Phys Rev Lett] 2022 Nov 23; Vol. 129 (22), pp. 221802. - Publication Year :
- 2022
-
Abstract
- A search for exotic dark matter (DM) in the sub-GeV mass range has been conducted using 205 kg day data taken from a p-type point contact germanium detector of the CDEX-10 experiment at China's Jinping underground laboratory. New low-mass dark matter searching channels, neutral current fermionic DM absorption (χ+A→ν+A) and DM-nucleus 3→2 scattering (χ+χ+A→ϕ+A), have been analyzed with an energy threshold of 160 eVee. No significant signal was found; thus new limits on the DM-nucleon interaction cross section are set for both models at the sub-GeV DM mass region. A cross section limit for the fermionic DM absorption is set to be 2.5×10^{-46} cm^{2} (90% C.L.) at DM mass of 10 MeV/c^{2}. For the DM-nucleus 3→2 scattering scenario, limits are extended to DM mass of 5 and 14 MeV/c^{2} for the massless dark photon and bound DM final state, respectively.
- Subjects :
- Cell Nucleus
Photons
Subjects
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 129
- Issue :
- 22
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 36493447
- Full Text :
- https://doi.org/10.1103/PhysRevLett.129.221802