Автор |
M Kakimoto |
Автор |
T Hyodo |
Автор |
T Chiba |
Автор |
T Akahane |
Автор |
T B Chang |
Дата выпуска |
1987-02-14 |
dc.description |
The momentum distribution of positronium (Ps) in the free space between silica aerogel grains filled with gaseous O<sub>2</sub> has been measured as a function of O<sub>2</sub> pressure. It reveals that para-Ps with kinetic energy >or approximately=1 eV is efficiently slowed down. This is attributed to successive triplet to or from singlet conversions of the Ps through inelastic collisions with O<sub>2</sub>. The cross section for this process is estimated to be at least two orders of magnitude larger than that for the conversion through elastic collisions. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Observation of triplet-singlet conversion of positronium via inelastic scattering by oxygen |
Тип |
lett |
DOI |
10.1088/0022-3700/20/3/007 |
Print ISSN |
0022-3700 |
Журнал |
Journal of Physics B: Atomic and Molecular Physics |
Том |
20 |
Первая страница |
L107 |
Последняя страница |
L113 |
Аффилиация |
M Kakimoto; Inst. of Phys., Tokyo Univ., Japan |
Аффилиация |
T Hyodo; Inst. of Phys., Tokyo Univ., Japan |
Аффилиация |
T Chiba; Inst. of Phys., Tokyo Univ., Japan |
Аффилиация |
T Akahane; Inst. of Phys., Tokyo Univ., Japan |
Аффилиация |
T B Chang; Inst. of Phys., Tokyo Univ., Japan |
Выпуск |
3 |