Walter R. Dixon, Lynn E. H. Trainor
Abstract
An interpretation of the experimental results on positrons stopping in liquid and solid media is presented in terms of annihilation from excited states of positronium. It is assumed on an empirical basis that the $2S$ states of positronium have sufficient stability in certain materials for direct annihilation.
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An interpretation of the experimental results on positrons stopping in liquid and solid media is presented in terms of annihilation from excited states of positronium. It is assumed on an empirical basis that the $2S$ states of positronium have sufficient stability in certain materials for direct annihilation.
Key concepts: Positronium, Annihilation, Excited state, Atomic physics, Physics, Positron, Positron annihilation, Nuclear physics