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Partial wave analysis of psi(3686) -> K+ K- eta

Abstract:
Using a sample of (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector, we perform the first partial wave analysis of ψ(3686)→K+K-η. In addition to the well established states, φ(1020), φ(1680), and K3∗(1780), contributions from X(1750), ρ(2150), ρ3(2250), and K2∗(1980) are also observed. The X(1750) state is determined to be a 1-resonance. The simultaneous observation of the φ(1680) and X(1750) indicates that the X(1750), with previous observations in photoproduction, is distinct from the φ(1680). The masses, widths, branching fractions of ψ(3686)→K+K-η, and the intermediate resonances are also measured.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevD.101.032008

Authors



Publisher:
American Physical Society
Journal:
Physical Review D More from this journal
Volume:
101
Issue:
3
Article number:
32008
Publication date:
2020-02-28
Acceptance date:
2020-02-12
DOI:
EISSN:
2470-0029
ISSN:
2470-0010


Language:
English
Keywords:
Pubs id:
1094745
Local pid:
pubs:1094745
Deposit date:
2020-04-23

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