Quantum corrections as a Bound for Detecting Self-Interacting Ultralight Dark Matter
Abstract
We investigate the implications of interactions between ultralight dark matter (ULDM) and Standard Model fermions for the radiative stability of the ULDM potential. By matching the heavy fermion onto a low-energy scalar effective field theory, we derive the one-loop threshold corrections to the ULDM mass and self-interaction couplings. We interpret these corrections in terms of radiative naturalness conditions. For the parameter region motivated by cosmological and galactic considerations, the quadratic correction provides the strongest naturalness criterion, while the direct and cubic-induced quartic corrections remain subdominant. Our results illustrate how radiative effects can constrain the parameter space satisfying our radiative-naturalness criterion based on threshold corrections.
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BibTeX
@misc{lee2026quantum,
title = {{Quantum corrections as a Bound for Detecting Self-Interacting Ultralight Dark Matter}},
author = {Jae-Weon Lee and Chueng-Ryong Ji},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2607.10521},
eprint = {2607.10521},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.10521},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Quantum corrections as a Bound for Detecting Self-Interacting Ultralight Dark Matter
AU - Jae-Weon Lee
AU - Chueng-Ryong Ji
PY - 2026
DA - 2026/09/20
PB - arXiv
DO - 10.48550/arxiv.2607.10521
UR - https://arxiv.org/abs/2607.10521
AB - We investigate the implications of interactions between ultralight dark matter (ULDM) and Standard Model fermions for the radiative stability of the ULDM potential. By matching the heavy fermion onto a low-energy scalar effective field theory, we derive the one-loop threshold corrections to the ULDM mass and self-interaction couplings. We interpret these corrections in terms of radiative naturalness conditions. For the parameter region motivated by cosmological and galactic considerations, the quadratic correction provides the strongest naturalness criterion, while the direct and cubic-induced quartic corrections remain subdominant. Our results illustrate how radiative effects can constrain the parameter space satisfying our radiative-naturalness criterion based on threshold corrections.
ER -