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

CLEO Collaboration: D. Cronin-Hennessy; et al

arxiv: 0910.1324 · v2 · submitted 2009-10-07 · ✦ hep-ex

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

CLEO Collaboration: D. Cronin-Hennessy , et al This is my paper

classification ✦ hep-ex

keywords gammadecaymodessearchbranchingcleo-ccollecteddecays

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

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