Resonances in positron scattering on a supercritical nucleus and spontaneous production of e+e- pairs

S. I. Godunov, B. Machet, M. I. Vysotsky

Результат исследования: Научные публикации в периодических изданияхстатья

11 Цитирования (Scopus)

Аннотация

We re-examine the physics of supercritical nuclei, specially focusing on the scattering phase δϰ and its dependence on the energy ε of the diving electronic level, for which we give both exact and approximate formulas. The Coulomb potential Zα/ r is rounded to the constant Zα/ R for r< R. We confirm the resonant behavior of δϰ that we investigate in detail. In addition to solving the Dirac equation for an electron, we solve it for a positron, in the field of the same nucleus. This clarifies the interpretation of the resonances. Our results are compared with claims made in previous works.

Язык оригиналаанглийский
Номер статьи782
Число страниц12
ЖурналEuropean Physical Journal C
Том77
Номер выпуска11
DOI
СостояниеОпубликовано - 20 ноя 2017

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