Search for ψ (3686) →γηc (η (1405)) →γπ+π-π0

BESIII Collaboration

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Using a sample of 448.1×106 ψ(3686) events collected with the BESIII detector, a search for the isospin violating decay ηc→π+π-π0 via ψ(3686)→γηc is presented. No signal is observed, and the upper limit on B(ψ(3686)→γηc)×B(ηc→π+π-π0) is determined to be 1.6×10-6 at the 90% confidence level. In addition, a search for η(1405)→f0(980)π0 in ψ(3686) radiative decays is performed. No signal is observed, and the branching fraction B(ψ(3686)→γη(1405))×B(η(1405)→f0(980)π0)×B(f0(980)→π+π-) is calculated to be less than 5.0×10-7 at the 90% confidence level.

Original languageEnglish (US)
Article number112008
JournalPhysical Review D
Issue number11
StatePublished - Dec 20 2017

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Publisher Copyright:
© 2017 American Physical Society.


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