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arXiv · hep-ph/0701022

X(1576) and the Final State Interaction Effect

Xiang Liu·Bo Zhang·Lei-Lei Shen·Shi-Lin Zhu
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Abstract

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

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Xiang Liu, Bo Zhang, Lei-Lei Shen, Shi-Lin Zhu. 2007-03-07. X(1576) and the Final State Interaction Effect. https://doi.org/10.1103/physrevd.75.074017

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