Atomic Particles and Atom Systems by Boris M. Smirnov

Author:Boris M. Smirnov
Language: eng
Format: epub, pdf
ISBN: 9783319754055
Publisher: Springer International Publishing

(5.14)

Here we divide the electrostatic interaction of Table 5.3 into four parts: the exchange interaction, , inside the atom and ion that is responsible for electrostatic splitting of levels inside an isolated atom and ion, the long-range interaction, , of the ion charge with the quadrupole moment of the atom, the long-range interaction, , that is responsible for splitting of ion levels, and the ion-atom exchange interaction potential, , that is determined by electron transition between atomic cores. Instead of the relativistic interaction of Table 5.3 we introduce separately the fine splitting of levels for the ion (the splitting of and ion levels) and (the splitting of and atom levels) for the atom. Here are the projections of the atom and ion angular momenta on the molecular axis, R is an ion-atom distance, is the tensor of the atom quadrupole moment, is the quadrupole moment tensor for the ion. Taking for simplicity the impact parameter of ion-atom collision to be we have for the rotation energy at closest approach of colliding particles

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