Abstract
Using CLEO data, we study the production of the antideuteron, , in resonance decays and the nearby continuum. The branching ratios obtained are , , and , where the “dir” superscript indicates that decays produced via reannihilation of the pair to a are removed from both the signal and the normalizing number of decays in order to isolate direct decays of the to , . Upper limits at 90% C.L. are given for , and continuum production . The data is also used to extract a limit on . The results indicate enhanced deuteron production in , hadronization compared to . Baryon number compensation is also investigated with the large sample.
- Received 10 December 2006
DOI:https://doi.org/10.1103/PhysRevD.75.012009
©2007 American Physical Society