  We leverage gravitational wave observations to explore physics beyond the
Standard Model, focusing on axion-like particles (ALPs). This study
investigates the resonant effects of ALPs with binary black hole systems, where
their oscillatory nature induces time-dependent forces on the black holes. By
employing a detailed Fisher matrix analysis, we not only probe a new parameter
space for ALPs, characterized by their mass and decay constants, but also
assess how these parameters affect gravitational waveforms during black hole
mergers. Our approach is distinct as it does not assume interactions of ALPs
with photons or nucleons. We demonstrate that as binary black holes spiral
inward and lose energy, their orbital frequencies may resonate with those of
ALPs, producing distinct oscillatory patterns in gravitational waves detectable
by upcoming experiments such as the Laser Interferometer Space Antenna (LISA).
This work broadens the potential of gravitational wave astronomy as a tool for
dark matter searches, offering a promising avenue for studying elusive
components of the universe.
