Comment on the ψ′→J/ψππ decay

V. A. Novikov, M. A. Shifman

Research output: Contribution to journalArticlepeer-review

150 Scopus citations


We discuss a new approach proposed earlier by Voloshin and Zakharov to calculate the ratio Γ(ψ′→J/ψππ)/Γ(ψ′→J/ψη). Some shortcomings in the original analysis are eliminated. The final result for the ratio of the decay widths stays practically intact, and we extract additional information about the amplitude ψ′→J/ψππ.

Original languageEnglish (US)
Pages (from-to)43-47
Number of pages5
JournalZeitschrift für Physik C Particles and Fields
Issue number1
StatePublished - Mar 1981


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