Published in:
Physical Review D 75,7 (2007)
Link to original published article:
http://dx.doi.org/10.1103/PhysRevD.75.071101
Abstract
Using a sample of 3x10(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 eta('), and eta(')eta(') final states. We find B(chi(c0)->eta eta)=(0.31 +/- 0.05 +/- 0.04 +/- 0.02)%, B(chi(c0)->eta eta('))< 0.05% at the 90% confidence level, and B(chi(c0)->eta(')eta('))=(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.
Keywords
Astronomy & Astrophysics;; Physics, Particles & Fields
Date of this Version
January 2007