An Improved Bound on Accelerated Light Dark Matter
arXiv:2308.02204 · doi:10.1007/s11433-023-2244-7
Abstract
Light (sub-GeV) dark matter has gained increasing interest in terms of direct detection. Accelerated dark matter is a promising candidate that can generate detectable nuclear recoil energy within the sub-GeV range. Because of the large kinetic energy, its interactions with the nucleus are predominantly governed by inelastic scattering, including quasi-elastic and deep inelastic scattering. In this work, we calculated the inelastic effects in dark matter--Earth scattering mediated by a vector particle. Our analysis revealed that the impact of inelastic scattering relies on the mediator mass and the kinetic energy spectrum of dark matter. The results exhibited considerable disparity: the upper bounds of the exclusion limit for the spin-independent cross-section between accelerated dark matter and nuclei via a heavy mediator differ by several tens of times when inelastic scattering is considered.
14 pages(double column), 9 figures, 1 table, updated to match the published version
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Cited by in corpus (8)
- Cosmic-ray dark matter confronted by constraints on new light mediators
- XENONnT and LUX-ZEPLIN constraints on DSNB-boosted dark matter
- Plasmon-enhanced Direct Detection Method for Boosted sub-MeV Dark Matter
- Boosted Dark Matter From Centaurus A and Its Detection
- Prospects of detecting cosmic ray up-scattered dark matter with DUNE
- Inelastic Scattering of Dark Matter with Heavy Cosmic Rays
- Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints
- Blazar-Boosted Dark Matter: Novel Signatures via Elastic and Inelastic Scattering