Speaker
Description
A partial-wave analysis of the decay $J/\psi \to K^+K^-\pi^0$ made using $(223.7\pm1.4)\times 10^{6}$ $J/\psi$ events collected with the BESIII detector in 2009 will be presented. We report the most precise measurements of $K^*(892)^\pm$ and $K^*_2(1430)^\pm$ mass and width. The analysis reveals contributions from $K^*_2(1980)^\pm$ and $K^*_4(2045)^\pm$ for the first time in $J/\psi$ decays. Two resonance signals decaying to $K^+K^-$ are also observed and their possible interpretations will be discussed. Results also include branching fractions for decays through intermediate states and a high precision measurement of $B(J/\psi \to K^+K^-\pi^0)$. The results of the partial-wave analysis differ significantly from those reported earlier by the BESII and BABAR Collaborations.
