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Abstract: (arXiv)
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.Note:
- 21 pages, 7 figures, updated to published version (PRD 81, 052002 (2010))
- 13.20.Gd
- 13.25.Gv
- 13.40.Hq
- electron positron: annihilation
- psi(3685): radiative decay
- branching ratio: upper limit
- eta/c(3590): branching ratio
- eta/c(3590): decay modes
- CLEO
- Cornell CESR Stor
References(35)
Figures(7)