Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The charge exchange reaction (t,3He) on carbon and magnesium targets is investigated in experiments using a streamer chamber. The experimental pion longitudinal momentum spectrum is compared with the calculated one for events with a single secondary pion. From this comparison it follows that the contribution from quasi-free Δ- excitation in the target nucleus in a single pion channel is only 60-70%. The momentum of the pions in the remaining fraction of events is significantly higher than that of the pions produced in delta de-excitation. The contribution from several possible processes is analyzed. The data indicate a significant role of coherent pion production via N(1440) or/and N(1520) in the target nucleus while part of the pion spectrum can be explained by projectile excitation.
Язык оригинала | английский |
---|---|
Страницы (с-по) | 355-366 |
Число страниц | 12 |
Журнал | Nuclear Physics A |
Том | 596 |
Номер выпуска | 3-4 |
DOI | |
Состояние | Опубликовано - 15 янв 1996 |
ID: 88098394