  Using polarized inelastic neutron scattering the antisymmetric part of the
dynamical susceptibility in non-centrosymmetric MnSi is determined. The
paramagnetic fluctuations are found to be incommensurate with the chemical
lattice and to have a chiral character. We show that antisymmetric interactions
must be taken into account to properly describe the critical dynamics in MnSi
above the Curie temperature. The inelastic neutron data is interpreted within
the framework of the SCR-theory, taking into account the Dzyaloshinskii-Moriya
interaction.
