Analysis of the decays $ψ^{\prime}\to {J/ψ}π^+π^-$ and $η_c^{\prime}\to {η_c}π^+π^-$ with the heavy quark symmetry

Details Analysis of the decays $ψ^{\prime}\to {J/ψ}π^+π^-$ and $η_c^{\prime}\to {η_c}π^+π^-$ with the heavy quark symmetry Analysis of the decays $ψ^{\prime}\to {J/ψ}π^+π^-$ and $η_c^{\prime}\to {η_c}π^+π^-$ with the heavy quark symmetry

2011-04-30

arxiv.org/abs/1105.0041v3

Eur.Phys.J.A47:94,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 3 figures, slight revision

Scientific paper

10.1140/epja/i2011-11094-3

In this article, we study the decays $\psi^{\prime}\to {J/\psi}\pi^+\pi^-$ and $\eta_c^{\prime}\to {\eta_c}\pi^+\pi^-$ by taking into account the chiral symmetry breaking effects, the final-state interactions and the heavy quark symmetry. We can confront the predictions of the $\eta_c^{\prime}\to \eta_c \pi^+\pi^-$ decay width and differential decay width with the experimental data in the future, and obtain powerful constraints on the chiral breaking effects and the final-state interactions, and test the heavy quark symmetry.

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