Multichannel scattering and annihilation in the positron hydrogen system

S. L. Yakovlev, C. Y. Hu

Результат исследований: Научные публикации в периодических изданияхстатья

1 цитирование (Scopus)

Выдержка

A problem to account for the direct electron-positron annihilation in positron-hydrogen scattering above the positronium formation threshold has been resolved within the time independent formalism. On the basis of the generalized optical theorem, the annihilation cross section is fully determined by scattering amplitudes. This allows to perform the analytic separation of the contribution of the positronium formation effect from the overall annihilation cross section. The rest determines the direct annihilation cross section.

Язык оригиналаанглийский
Страницы (с-по)237-239
Число страниц3
ЖурналFew-Body Systems
Том44
Номер выпуска1-4
DOI
СостояниеОпубликовано - 5 дек 2008

Отпечаток

positrons
positronium
cross sections
hydrogen
scattering
positron annihilation
scattering amplitude
theorems
formalism
thresholds

Предметные области Scopus

  • Атомная и молекулярная физика и оптика

Цитировать

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Multichannel scattering and annihilation in the positron hydrogen system. / Yakovlev, S. L.; Hu, C. Y.

В: Few-Body Systems, Том 44, № 1-4, 05.12.2008, стр. 237-239.

Результат исследований: Научные публикации в периодических изданияхстатья

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AU - Hu, C. Y.

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AB - A problem to account for the direct electron-positron annihilation in positron-hydrogen scattering above the positronium formation threshold has been resolved within the time independent formalism. On the basis of the generalized optical theorem, the annihilation cross section is fully determined by scattering amplitudes. This allows to perform the analytic separation of the contribution of the positronium formation effect from the overall annihilation cross section. The rest determines the direct annihilation cross section.

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