Radiative decays of heavy vector mesons into paraquarkonia
| Autor: | Wayne W. Repko, Alberto Devoto |
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| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | Physics Letters B. 106:501-504 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/0370-2693(81)90266-5 |
| Popis: | The width for decays of the type 1−→γ + 0− is evaluated using the two gluon mechanism of QCD. In particular we compute Γ(Ψ → γ + η′), Γ(Ψ → γ + η) and Γ(ϒ → γ + ηc). The first two are found to be in reasonable agreement with the experimental results, while the latter leads to a branching ratio of 2 × 10−5. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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