Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8186080 | Nuclear Physics B - Proceedings Supplements | 2010 | 4 Pages |
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 Ï(3770) non-DD¯ decays, and “ÏÏ 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.
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Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Qiang Zhao,