X(1576) and the Final State Interaction Effect

Abstract

We study whether the broad peak X(1576) observed by BES Collaboration arises from the final state interaction effect of $\rho (1450,1700)$ decays. The interference effect could produce an enhancement around 1540 MeV in the $K^{+}{K}^{-}$ spectrum with typical interference phases. However, the branching ratio $B[J/\psi \to {\pi }^0\rho (1450,1700)]\cdot B[\rho (1450,1700)\to K^{+}{K}^{-}]$ from the final state interaction effect is far less than the experimental data.

6 pages, 4 figures. Some typos corrected, more discussion and references added

Cited by in corpus (4)

• The dispersive contribution of $\rho (1450,1700)$ decays and X(1576)
• The two-body open charm decays of $Z^{+}(4430)$
• Final state hadronic interactions and non-resonant $B^{\pm }\to K^{\pm }{\pi }^{+}{\pi }^{-}$ decays
• A possible explanation of a broad $1^{--}$ resonant structure around 1.5GeV