Observation of η' → ωe+e−
Based on a sample of η' mesons produced in the radiative decay J/ψ→γη' in 1.31×109 J/ψ events collected with the BESIII detector, the decay η'→ωe+e− is observed for the first time, with a statistical significance of 8σ. The branching fraction is measured to be B(η'→ωe+e−)=(1.97±0...
| Опубликовано в: : | Physical Review D Vol. 92, № 5. P. 051101-1-051101-8 |
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| Другие авторы: | , , , |
| Формат: | Статья в журнале |
| Язык: | English |
| Предметы: | |
| Online-ссылка: | http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000579659 Перейти в каталог НБ ТГУ |