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Paper detail

Negative energy states in pionic hydrogen

Probabilities of finding an antiparticle in an atom or ion containing a particle of spin 1/2 or spin 0 are determined. The spin 1/2 case was previously solved by Hans Bethe and his work is summarized. The spin 0 case is treated numerically for an arbitrary atomic number and analytically for small atomic numbers. The main tool for the spin 0 case is the Feshbach-Villars representation of the Klein-Gordon equation.

preprint2022arXivOpen access
Andrzej Czarnecki
physics.atom-phhep-ph
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Andrzej Czarnecki

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