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Neutralization of excited antiprotonic helium ion in collisions with helium atomsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 апреля 2021 г.
- Авторы: Korenman G.Y., Yudin S.N.
- Журнал: European Physical Journal D
- Том: 75
- Год издания: 2021
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Номер статьи: 64
- DOI: 10.1140/epjd/s10053-021-00046-2
- Аннотация: We consider the neutralization of an excited antiprotonic helium ion which is accompanied by antiproton transitions to lower states during collisions with helium atoms (p¯He2+)nl+He→[(p¯He2+)nflfe]1s+He+ in a low-temperature medium. Interactions in the input and output channels are taken to be similar to the potentials of the H+−He (X1Σ+) and H−He+ (A1Σ+) systems, respectively. The potentials in the output channels are shifted by an amount equal to the dexcitation energy of the antiproton. Therefore, the potentials in the input and output channels can intersect for the some antiproton quantum numbers leading to appreciable cross sections of the transitions. We have found that this process can increase the effective annihilation rates of highly excited antiprotonic helium ions in helium targets of low atomic density and temperature that were used in recent experiments.
- Добавил в систему: Коренман Григорий Яковлевич