Puzzles in charmonium decays
High Energy Physics - Phenomenology
2015-05-20 v1 High Energy Physics - Experiment
Abstract
The open charm effects via intermediate hadron loop transitions seem to play a crucial role in the understanding of several existing "puzzles" in charmonium exclusive decays, such as the non- decays, and " puzzle" etc. In the charmonium energy region, non-perturbative mechanisms could be still sizeable, and as a consequence the intermediate hadron loop transitions also provide a mechanism for the helicity-selection-rule (HSR) violation. We report our recent progress on those existing puzzles.
Cite
@article{arxiv.1012.2887,
title = {Puzzles in charmonium decays},
author = {Qiang Zhao},
journal= {arXiv preprint arXiv:1012.2887},
year = {2015}
}
Comments
Invited talk on the 15th International Conference in QCD, June 28- July 3, 2010, Montpellier, France