Abstract
Using a sample of 3×106 ψ(2S) decays collected by the CLEO III and CLEO-c detector configurations, we present results of a study of χc0 and χc2 decays into ηη, ηη′, and η′η′ final states. We find B(χc0→ηη)=(0.31±0.05±0. 04±0.02)%, B(χc0→ηη′)<0.05% at the 90% confidence level, and B(χc0→η′η′)=(0.17±0. 04±0.02±0.01)%. We also present upper limits for the decays of χc2 into these final states. These results give information on the decay mechanism of χc states into pseudoscalars.
Original language | English |
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Article number | 071101 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 75 |
Issue number | 7 |
DOIs | |
Publication status | Published - 4 Apr 2007 |
Externally published | Yes |
Bibliographical note
Copyright:Copyright 2007 Elsevier B.V., All rights reserved.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)