  The antideuteron and antihelium-3 production rates at high-energy heavy ion
collisions are calculated in the framework of fusion mechanism when
participating particles are moving in the mean field of other fireball
constituents. It is shown that coalescence parameters can be found from the
requirement of balance between created and disintegrated antinuclei. The
explicit formulae for coalescence parameters are presented and compared with
experimental data.

Nuclear Theory