PreprintCC BY 4.0arXiv
Nuclear Atomic Dark Matter
Abstract
The matter coincidence, ΩDM≃5Ωb, suggests a common origin for visible and dark matter (DM). We show that this motivates the study of nuclear atomic DM (naDM), which is composed of ∼5 GeV mirror-neutron DM and a subdominant population of mirror elements. We realize naDM in the Mirror Twin Higgs, employing a twin Froggatt--Nielsen mechanism to generate fermion masses and realize spontaneous ℤ2 symmetry breaking. However, the low-energy mirror framework is more general and can emerge from other ultraviolet completions. naDM gives rise to a novel two-stage dark acoustic oscillation signature, multiple correlated direct-detection signals, and highly exotic twin astrophysics.
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BibTeX
@misc{asadi2026nuclear,
title = {{Nuclear Atomic Dark Matter}},
author = {Pouya Asadi and Zackaria Chacko and David Curtin and Micah Mellors and Ethan T. Neil},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.07195},
eprint = {2611.07195},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.07195},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Nuclear Atomic Dark Matter
AU - Pouya Asadi
AU - Zackaria Chacko
AU - David Curtin
AU - Micah Mellors
AU - Ethan T. Neil
PY - 2026
DA - 2026/11/04
PB - arXiv
DO - 10.48550/arxiv.2611.07195
UR - https://arxiv.org/abs/2611.07195
AB - The matter coincidence, Ω_DM≃5Ω_b, suggests a common origin for visible and dark matter (DM). We show that this motivates the study of nuclear atomic DM (naDM), which is composed of ∼5 GeV mirror-neutron DM and a subdominant population of mirror elements. We realize naDM in the Mirror Twin Higgs, employing a twin Froggatt--Nielsen mechanism to generate fermion masses and realize spontaneous ℤ_2 symmetry breaking. However, the low-energy mirror framework is more general and can emerge from other ultraviolet completions. naDM gives rise to a novel two-stage dark acoustic oscillation signature, multiple correlated direct-detection signals, and highly exotic twin astrophysics.
ER -