Аннотация
The dynamics of the JPC=0-+, 0++, and 2++ resonance contributions to the decay J/ψ→γX(JPC)→γφφ is analysed using the data obtained by BESIII collaboration. The effective coupling constants parameterising invariant amplitudes of the transitions J/ψ→γX(JPC) and X(JPC)→φφ and masses of X(JPC) resonances are found from the fits. They are used for evaluation of the branching fractions BX(JPC)→φφ, relative branching fractions BJ/ψ→γX(JPC)→γφφ, and for obtaining the photon angular distributions.
Язык оригинала | английский |
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Номер статьи | 014019 |
Число страниц | 10 |
Журнал | Physical Review D |
Том | 99 |
Номер выпуска | 1 |
DOI | |
Состояние | Опубликовано - 14 янв 2019 |