  We consider lepton-neutron (and lepton-antineutron) bound states and
resonances which appear due to spin-spin, spin-orbital interactions,neutron
polarization by muon. Our analis is also true for any system which include one
charge and one neutral particle with finite size e.g. $\pi^0\mu^{\pm}$-bound
states.We consider also cylindrically symmetric bound states and resonances of
particles with anomalous magnetic moments.
