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Differential Cross Section for the 16О(t, p)18О Reaction and Determination of the Size of the Two-Neutron Periphery in the 18О Nucleusстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 9 ноября 2017 г.
- Авторы: Galanina L.I., Zelenskaya N.S.
- Журнал: Physics of Atomic Nuclei
- Том: 80
- Номер: 5
- Год издания: 2017
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 952
- Последняя страница: 956
- DOI: 10.1134/S1063778817050088
- Аннотация: Within the theoretical formalism that combines a four-body problem with themultiparticle shell model, it is shown that the cross section for the dineuteron-stripping mechanism is consistent with the experimental angular distribution of protons from the 16О(t, p)18О reaction. This makes it possible to find the wave function for the relative motion of the dineutron and 16О and to obtain thereby the probability density W(r) for the dineutron in 18О, the nn–16О interaction potential, and the root-mean-square distance Lnn between the dineutron and 16О. The respective calculations reveal that, at r ≈ 8 fm, the dineutron probability density and a rather deep nn–16О potential become negligible, which leads to the absence of a dineuntron periphery in 18О. It seems that one can explain this fact by a rather large value (12.19 MeV) of the dineutron binding energy in this nucleus. Thus, the 18О nucleus is quite compact an object, despite the excess of two neutrons, and has a neutron skin rather than a periphery.
- Добавил в систему: Зеленская Наталья Семеновна