학술논문

Search for axion-like dark matter through nuclear spin precession in electric and magnetic fields
Document Type
Working Paper
Source
Phys. Rev. X 7, 041034 (2017)
Subject
High Energy Physics - Phenomenology
Astrophysics - Cosmology and Nongalactic Astrophysics
Nuclear Experiment
Nuclear Theory
Physics - Atomic Physics
Language
Abstract
We report on a search for ultra-low-mass axion-like dark matter by analysing the ratio of the spin-precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms for an axion-induced oscillating electric dipole moment of the neutron and an axion-wind spin-precession effect. No signal consistent with dark matter is observed for the axion mass range $10^{-24}~\textrm{eV} \le m_a \le 10^{-17}~\textrm{eV}$. Our null result sets the first laboratory constraints on the coupling of axion dark matter to gluons, which improve on astrophysical limits by up to 3 orders of magnitude, and also improves on previous laboratory constraints on the axion coupling to nucleons by up to a factor of 40.