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New Limits on Ultralight Axionlike Dark Matter from Reanalyzed Data

High Energy Physics - Phenomenology 2025-07-30 v2 High Energy Astrophysical Phenomena

Abstract

New limits on the axion-nucleon coupling over the axion mass region 1024ma5×102110^{-24} \leq m_a \leq 5 \times 10^{-21} eV are derived by reanalyzing data from laboratory measurements on Lorentz and CPTCPT violation. These results establish the first laboratory constraints on the axion-nucleon coupling for axion masses below 102210^{-22} eV. For 1022ma5×102110^{-22} \leq m_a \leq 5 \times 10^{-21} eV, the results improve upon previous laboratory limits by more than 3 orders of magnitude, exceeding for the first time the astrophysical limits from supernova SN1987A cooling. For the axion mass range of interest corresponding to ultralow frequencies, the crucial local phase of the axion field is considered. Furthermore, the obtained limits are nearly equivalent to those projected for a recently proposed experiment employing high-intensity neutron beams at the European Spallation Source. For an alternative type of axion-nucleon interaction, the quadratic wind coupling, the constraints exceed the current best results by approximately 2 orders of magnitude.

Keywords

Cite

@article{arxiv.2501.08117,
  title  = {New Limits on Ultralight Axionlike Dark Matter from Reanalyzed Data},
  author = {K. Y. Zhang and L. Y. Wu and H. Yan},
  journal= {arXiv preprint arXiv:2501.08117},
  year   = {2025}
}

Comments

Revised according to suggestions from referees; 6 pages, 5 figures

R2 v1 2026-06-28T21:05:55.044Z