The role of mixed configurations in the structure of exotic helium ions

In the new variations calculation of exohelium we take into account the anisotropic part of polarization of the electron charge cloud by the heavy negative particle. We calculated also lifetimes relative to dipole transitions. A little below the most populated states the lifetime has a considerable peak. This peak is explained almost complete compensation of two dipole moments: that of antiproton and that of electron. Avoided crossings of energy levels are discussed as well