Summary
We study the pion content of the ground state and of the low-lying states of116Sn in a phenomenological model based on the static approximation for the pion-nucleon interaction. If we make reasonable assumptions, the probability of having one pion in the ground state is less than 5%. We obtain high-energy states which may be described as pion-nucleus bound states.
Riassunto
Si studia il «contenuto pionico» dello stato fondamentale e degli stati eccitati di bassa energia del116Sn in un modello fenomenologico basato sull’approssimazione statica per l’interazione pione-nucleone. Facendo ipotesi ragionevoli la probabilità di avere un pione nello stato fondamentale è meno del 5%. Si ottengono stati ad alta energia che possono essere descritti come stati legati pione-nucleo.
Реэюме
Мы исследуем основное состояние и ниэколежашие состояния 116Sn в феноменологической модели, основанной на статическом приближении для пион-нуклонного вэаимодействия. При раэумных предположениях вероятность иметь один пион в основном состоянии составляет менее 5%. Мы получаем со-стояния с высокой знергией, которые могут быть описаны, как пион-ядерные свяэанные состояния.
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Cannata, F., Savoia, M. Exotic states in a tin isotope. Nuov Cim A 38, 1–10 (1977). https://doi.org/10.1007/BF02734124
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DOI: https://doi.org/10.1007/BF02734124