Splitting of Potential Curves in the Two-Coulomb-Centre Problem

The quasiclassical expression for the exchange interaction ↠E of potential curves at the points of their quasicrossing in the two-Coulomb-centre problem is found. It can be used for the calculation of cross sections of charge exchange processes between hydrogen or hydrogen-like atoms and bare nuclei. © 2018 The Authors, published by EDP Sciences.