A possible explanation of a broad $1^{--}$ resonant structure around 1.5GeV

Abstract

The broad $1^{--}$ resonant structure around 1.5GeV observed in the $K^{+}{K}^{-}$ mass spectrum in $J/\psi \to K^{+}{K}^{-}{\pi }^0$ by BESII is interpreted as a composition of $\rho (1450)$ and $\rho (1700)$. Various tests are investigated.

Comments: 9 pages