H−stripping in collisions with low-energyp¯andH−

Electron detachment of ${\mathrm{H}}^{-}$ by impact of low-energy antiprotons and ${\mathrm{H}}^{-}$ is studied. Detachment cross sections for relative velocities $v\le 0.1\alpha c$ are evaluated with the use of several approximations. Results of different methods of calculation are consistent with each other. Cross sections of about ${10}^{-14\mathrm{}}$ ${\mathrm{cm}}^2$ are obtained just above the detachment threshold.