SPIN HEDGEHOG AND COLLECTIVE MAGNETIC QUADRUPOLE-MOMENTS INDUCED BY PARITY AND TIME INVARIANCE VIOLATING INTERACTION

P- and T-odd interaction produces a spin distribution with the spins d irected along the radius in spherically symmetric quantum systems. Due to the spin-dependent strong interaction this spin hedgehog contribut es to P- and T-odd effects in neutron scattering, nuclear moments, etc . In deformed nuclei the P- and T-odd interaction produces a collectiv e magnetic quadrupole moment. This moment induces P- and T-violating e ffects in atoms and molecules.