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Observation of the decays chi(cJ) -> phi phi eta

Abstract:
Using a data sample of (448.1±2.9)×106 ψ(3686) decays collected by the BESIII detector at the Beijing Electron Positron Collider (BEPCII), we observe the decays χcJ→φφη(J=0,1,2), where the χcJ are produced via the radiative processes ψ(3686)→γχcJ. The branching fractions are measured to be B(χc0→φφη)=(8.41±0.74±0.62)×10-4, B(χc1→φφη)=(2.96±0.43±0.22)×10-4, and B(χc2→φφη)=(5.33±0.52±0.39)×10-4, where the first uncertainties are statistical, and the second are systematic. We also search for intermediate states in the φφ or ηφ subsystems, but no significant structure is seen due to the limited statistics.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevD.101.012012

Authors



Publisher:
American Physical Society
Journal:
Physical Review D More from this journal
Volume:
101
Issue:
1
Article number:
12012
Publication date:
2020-01-24
DOI:
EISSN:
2470-0029
ISSN:
2470-0010


Language:
English
Keywords:
Pubs id:
1084244
Local pid:
pubs:1084244
Deposit date:
2020-04-23

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