Observation of J/{psi}{yields}3{gamma}
Journal Article
·
· Physical Review Letters
- Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)
- University of Rochester, Rochester, New York 14627 (United States)
- Syracuse University, Syracuse, New York 13244 (United States)
We report the first observation of the decay J/{psi}{yields}3{gamma}. The signal has a statistical significance of 6{sigma} and corresponds to a branching fraction of B(J/{psi}{yields}3{gamma})=(1.2{+-}0.3{+-}0.2)x10{sup -5}, in which the errors are statistical and systematic, respectively. The measurement uses {psi}(2S){yields}{pi}{sup +}{pi}{sup -}J/{psi} events acquired with the CLEO-c detector operating at the CESR e{sup +}e{sup -} collider.
- OSTI ID:
- 21134184
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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