  We report on a search for dark matter axion-like particles (ALPs) using a
Ramsey-type apparatus for cold neutrons. A hypothetical ALP-gluon-coupling
would manifest in a neutron electric dipole moment signal oscillating in time.
Twenty-four hours of data have been analyzed in a frequency range from 23
$\mu$Hz to 1 kHz, and no significant oscillating signal has been found. The
usage of present dark-matter models allows to constrain the coupling of ALPs to
gluons in the mass range from $10^{-19}$ to $4 \times 10^{-12}$ eV. The best
limit of $C_G$/$f_a m_a = 2.7 \times 10^{13}$ GeV$^{-2}$ (95% C.L.) is reached
in the mass range from $2 \times 10^{-17}$ to $2 \times 10^{-14}$ eV.

High Energy Physics - Experiment;Instrumentation and Detectors