Partial-wave analysis of J /ψ →k+K-π0

BESIII Collaboration

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14 Scopus citations


A partial-wave analysis of the decay J/ψ→K+K-π0 has been made using (223.7±1.4)×106 J/ψ events collected with the BESIII detector in 2009. The analysis, which is performed within the isobar-model approach, reveals contributions from K2∗(1430)±, K2∗(1980)± and K4∗(2045)± decaying to K±π0. The two latter states are observed in J/ψ decays for the first time. Two resonance signals decaying to K+K- are also observed. These contributions cannot be reliably identified and their possible interpretations are discussed. The measured branching fraction B(J/ψ→K+K-π0) of (2.88±0.01±0.12)×10-3 is more precise than previous results. Branching fractions for the reported contributions are presented as well. The results of the partial-wave analysis differ significantly from those previously obtained by BESII and BABAR.

Original languageEnglish (US)
Article number032004
JournalPhysical Review D
Issue number3
StatePublished - Aug 14 2019

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© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.


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