Energy--level splitting in antiprotonic helium atoms
Abstract
Recent experiments on the laser-induced resonant annihilation provide a precise measurement of transition energies of antiprotonic helium atoms. Relativistic corrections of an order of α 2 to the pure Coulomb interaction will be taken into account in the theoretical description of energy spectra of antiprotonic helium atoms. The splitting of energy levels arising due to the spin-dependent part of the relativistic interaction is considered for a number of states of 3,4\! H\! e pe systems.
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