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arXiv · 0910.1324

Search for psi(2S) -> gamma eta_c(2S) via fully reconstructed eta_c(2S) decays

CLEO Collaboration·D. Cronin-Hennessy
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Abstract

We report a search for the decay psi(2S) -> gamma eta_c(2S) in a sample of 25.9 million psi(2S) events collected with the CLEO-c detector. No signals are observed in any of the 11 exclusive eta_c(2S) decay modes studied, or in their sum. Product branching fraction upper limits are determined as a function of Gamma[eta_c(2S)] for the 11 individual modes.

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CLEO Collaboration, D. Cronin-Hennessy. 2010-03-08. Search for psi(2S) -> gamma eta_c(2S) via fully reconstructed eta_c(2S) decays. https://doi.org/10.1103/physrevd.81.052002

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