Helium-antihydrogen interaction: the Born-Oppenheimer potential energy curve

Phys Rev Lett. 2002 Apr 22;88(16):163201. doi: 10.1103/PhysRevLett.88.163201. Epub 2002 Apr 8.

Abstract

The interaction of atomic antihydrogen with helium has been studied within the Born-Oppenheimer approximation. The linear combination of explicitly correlated Gaussian functions was used as the ansatz for the wave function of light particles. The potential energy curve with the minimum at 3.63 bohr and the barrier at 2.42 bohr has been obtained.