The decay η′c → ηcππ

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It is pointed out that the decay of the recently observed charmonium η′c resonance, η′c → ηcππ is simply related to the well-studied decay ψ′ → J/ψππ and can thus be used for absolute normalization of other decay modes of the η′c. The total rate of the discussed decay should be approximately three to four times the corresponding rate for the ψ′ resonance making the channel with charged pions the most probable exclusive decay mode of the η′c with the branching ratio in the range 5-10%.

Original languageEnglish (US)
Pages (from-to)1533-1537
Number of pages5
JournalModern Physics Letters A
Issue number23
StatePublished - Jul 30 2002

Bibliographical note

Funding Information:
This work was supported in part by the DOE grant DE-FG02-94ER40823.

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