chi_c0 and chi_c2 Decays into eta eta, eta eta', and eta' eta' Final States

Abstract

Using a sample of 3 x 10^6 psi(2S) decays collected by the CLEO III and CLEO_c detector configurations, we present results of a study of χ_{c0} and χ_{c2} decays into eta-eta, eta-etaprime, and etaprime-etaprime final states. We find B(chi_{c0} -> eta-eta)= (0.31+-0.05+-0.04+-0.02)%, B(chi_{c0} -> eta-etaprime) <0.05 % at the 90% confidence level, and B(chi_{c0} -> etaprime-etaprime) = (0.17 +- 0.04 +-0.02 +-0.01)%. We also present upper limits for the decays of χ_{c2} into these final states. These results give information on the decay mechanism of χ_c states into pseudoscalars.

6pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2006/

References in corpus (6)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Photon Transitions in ψ(2S) Decays to χ_{cJ}(1P) and η_c(1S)
• A coherent study of ${\chi }_{c0,2}\to VV$, $PP$ and $SS$
• Radiative Decay of the ψ(2S) into Two Pseudoscalar Mesons
• A Study of \bar{p}p -> Two Neutral Pseudoscalar Mesons at the chi_c0(1^3P_0) Formation Energy

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• χ_{c0,2} decay into light meson pairs and its implication of the scalar meson structures
• First Observation of Exclusive chi_cJ Decays to Two Charged and Two Neutral Hadrons
• Probing scalar meson structures in ${\chi }_{c1}$ decays into pseudoscalar and scalar
• Study the decays of ${\chi }_{cJ}(J=0,1,2)$ to light meson pairs with SU(3) flavor symmetry/breaking analysis