ELASTIC SCATTERING AND COLLISIONAL SHIST OF HFS TRANSITIONS OF METASTABLE ANTIPROTONIC HELIUM Grigori Korenman Institute of Nuclear Physics, Moscow State Univ., Moscow 119899, Russia Effective potential of $(\bar{p}He^{+})_{nL}$ - He interaction is used to consider elastic scattering and transport cross sections at low velocities, cross sections of transitions between HFS sublevels $F=L\pm(1/2)_e$, $J=F\pm(1/2)_{\bar{p}}$, shift of spectral lines $nLFJ\to nLF'J'$ due to tensor part of the interaction.