New Measurement of Exclusive Decays of the chi_c0 and chi_c2 to Two-Meson Final States

Details New Measurement of Exclusive Decays of the chi_c0 and chi_c2 to Two-Meson Final States New Measurement of Exclusive Decays of the chi_c0 and chi_c2 to Two-Meson Final States

2008-11-04

arxiv.org/abs/0811.0586v1

Phys.Rev.D79:072007,2009

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, available through http://www.lns.cornell.edu/public/CLNS/, submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.79.072007

Using a sample of 2.59 times 10^7 psi(2S) decays collected by the CLEO--c detector, we present results of a study of chi_{c0} and chi_{c2} decays into two-meson final states. We present the world's most precise measurements of the chi_{cJ,(J=0,2)} -> pi^+pi^-, pi^0 pi^0, K^+K^-, K^0_S K^0_S, eta eta and eta^{prime} eta^{prime} branching fractions, and a search for chi_c decays into eta eta^{prime}. These results shed light on the mechanism of charmonium decays into pseudoscalar mesons.

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