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Observation of eta' decays to pi+pi-pi0 and pi+pi-e+e-.

Abstract:

Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this result probes the mechanism of isospin violation and the roles of pi;{0}/eta/eta;{'}-mi...

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Publication status:
Published

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Journal:
Physical Review Letters More from this journal
Volume:
102
Issue:
6
Pages:
061801
Publication date:
2009-02-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:4329
UUID:
uuid:d3846f1e-25dc-4ae5-bf25-3ce97d7d08ce
Local pid:
pubs:4329
Source identifiers:
4329
Deposit date:
2012-12-19

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