The leading term of the He$-\bar{p}\mbox{He}^+$ long-range interaction

Vladimir I. Korobov, Zhen-Xiang Zhong, Quan-Long Tian

The long range interaction between an antiprotonic helium atom $\bar{p}$He${}^{+}$ and helium atom in its ground state is studied. We calculate the dispersion coefficients $C_6$ using…