New measurement of exclusive decays of the χc0 and χc2 to two-meson final states

Journal article

Using a sample of 2.59×107 ψ(2S) decays collected by the CLEO-c detector, we present results of a study of χc0 and χc2 decays into two-meson final states. We present the world's most precise measurements of the χcJ,(J=0,2)→π+π-, π0π0, K+K-, KS0KS0, ηη, and η′η′ branching fractions, and a search for χc decays into ηη′. These results shed light on the mechanism of charmonium decays into pseudoscalar mesons. © 2009 The American Physical Society.

Authors: Asner, D; Edwards, K; Reed, J; Robichaud, A; Tatishvili, G

• Journal: Physical Review D
• Volume: 79
• Issue: 7
• Publication date: 2009-04-01
• DOI: 10.1103/PhysRevD.79.072007
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English