LZ Paper Map248 keV papers & summaries

Other endothermic DM · Interpretation

Cosmological Constrained Axion-Portal Inelastic Dark Matter for the LZ Event

Haipeng An, Fei Gao, Jia Liu, Minghao Liu, Changlong Xu

Published
September 16, 2026
Identifier
arXiv:2609.17412

Why it is here

Links the event's scattering direction to the cosmological excited-state abundance, with annual modulation and collider searches as discriminants.

Machine-assisted summary

The authors track both states of axion-portal inelastic dark matter through the early Universe and show that the interaction's Lorentz structure selects whether today's recoil spectrum is dominated by endothermic up-scattering or exothermic down-scattering.

axion-like mediatorexcited-state relic fractiondark-sector conversionannual modulation

Citation lineage on this map

Cites 58

Cited by 20

Metadata comes from arXiv. Summaries and placement are machine-assisted; inclusion is not endorsement or peer review.