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An upper limit for the radiative decay width of the J/ψ resonance into η′(958)+γ

Верхний предел для ширины радиационного распада резонанса J/ψ на η′(958)+γ

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Il Nuovo Cimento A (1965-1970)

Summary

We present the results of a search performed at ADONE for the reaction e++e→J/ψ→η′(958)+γ. No evidence was found for such a reaction. The upper limit for the decay is\(\Gamma _{J/\psi \to \eta ^\prime \eta< 0.50} \) keV (90% CL).

Riassunto

Si presentano i risultati di una ricerca effettuata ad ADONE sulla reazione e++e→J/ψ→η′(958)+γ. Non si è trovata alcuna prova di tale reazione. Il limite superiore per il decadimento è\(\Gamma _{J/\psi \to \eta ^\prime \eta< 0.50} \) keV (90% CL).

Резюме

Мы предлагаем результаты поисков реакции e++e→J/ψ→η′(958)+γ на АДОНЕ. Не было обнаружено подтверждений для такого распада при полной светимости 146 nb−1, проинтегрированной по области энергий в системе центра масс вблизи пика резонанса J/ψ, Мы приводим следующий предел для ширины парциального распада J/ψ→η′γ,\(\Gamma _{J/\psi \to \eta ^\prime \eta< 0.50} \) КэВ.

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Barbiellini, G., Cnops, A.M., Finocchiaro, G. et al. An upper limit for the radiative decay width of the J/ψ resonance into η′(958)+γ. Nuov Cim A 37, 133–140 (1977). https://doi.org/10.1007/BF02813383

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  • DOI: https://doi.org/10.1007/BF02813383

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