Partial wave analysis of J / psi --> gamma (K+ K- pi0)
1998Citations per year
Abstract: (Elsevier)
BES data on J / ψ → γ ( K + K − π 0 ) display a strong peak in the K + K − π 0 mass spectrum at 1450 MeV. This peak and a corresponding one in J / ψ → γ ( ηπ + π − ) at ∼1400 MeV may be fitted well by η (1440) with dominant decays to K ∗ (890)K , using an s -dependent width in the Breit-Wigner amplitude. A broad background is also required in KK 0 (where K 0 stands for the Kπ S-wave) and also in ηππ , but is probably not resonant in this mass range.- 14.40.Cs
- 12.39.Mk
- 13.25.Jx
- 13.40.Hq
- J/psi(3100): radiative decay
- K*(892)
- mass spectrum: (K+ K- pi0)
- mass spectrum: (eta pi+ pi-)
- partial wave analysis
- model: Breit-Wigner
References(14)
Figures(0)
- [1]
- [2]
- [3]
- [4]
- [5]
- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [13]
- [14]