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

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

2006-11-06

arxiv.org/abs/hep-ex/0611013v2

Phys.Rev.D75:071101,2007

Physics

High Energy Physics

High Energy Physics - Experiment

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

Scientific paper

10.1103/PhysRevD.75.071101

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 \chi_{c0} and \chi_{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 \chi_{c2} into these final states. These results give information on the decay mechanism of \chi_c states into pseudoscalars.

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