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Observation of J/psi-->3gamma.

Abstract:
We report the first observation of the decay J/psi-->3gamma. The signal has a statistical significance of 6sigma and corresponds to a branching fraction of B(J/psi-->3gamma)=(1.2+/-0.3+/-0.2)x10;{-5}, in which the errors are statistical and systematic, respectively. The measurement uses psi(2S)-->pi;{+}pi;{-}J/psi events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider.
Publication status:
Published

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Journal:
Physical Review Letters More from this journal
Volume:
101
Issue:
10
Pages:
101801
Publication date:
2008-09-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:11179
UUID:
uuid:f8c6e57a-5216-4845-b004-4ae7df69303d
Local pid:
pubs:11179
Source identifiers:
11179
Deposit date:
2012-12-19

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