Recent BES results on charmonium decays
High Energy Physics - Experiment
2007-05-23 v1
Abstract
Recent results on charmonia decays at BES/BEPC are reported, including the observation of psi'-->K_S K_L, psi'--> Vector + Tensor for the measurement of the relative phase between the strong and electromagnetic decays of psi' and a test of the pQCD ``12% rule'' between psi' and J/psi decays; the study of psi'--> gamma gamma J/psi for the determination of psi'--> pi^0 J/psi, eta J/psi, gamma chi_c1 and gamma chi_c2 decay branching fractions; the test of the color-octet mechanism via chi_cJ--> p \bar{p} and chi_cJ--> \Lambda \bar{\Lambda}; and a search for the CP violating process psi' and J/psi--> K_S K_S.
Cite
@article{arxiv.hep-ex/0405021,
title = {Recent BES results on charmonium decays},
author = {Changzheng Yuan},
journal= {arXiv preprint arXiv:hep-ex/0405021},
year = {2007}
}
Comments
4 pages, 1 figure, talk at 39th Rencontres de Moriond, QCD session