Possible polarized neutron-nucleus scattering search for a new spin-dependent nucleon-nucleon coupling in a Fm range

An experimental opportunity is presented for the future to measure possible $P$- and $T$-non-invariant axion-like interaction between nucleons in a Fm range. This interaction may be searched for in the measurement spin-dependent asymmetry of scattering of polarized neutrons in a keV–MeV energy range by heavy nuclei.