Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1853523 | Physics Letters B | 2008 | 4 Pages |
Abstract
Recently Belle has established the 90% confidence level (CL) upper limit B<9.4Ã10â7 for the branching ratio for B0âJ/ÏÏ, a process expected to be suppressed by the Okubo-Zweig-Iizuka (OZI) rule disfavoring disconnected quark diagrams. We use information on Ï-Ï mixing to establish likely lower bounds on this and related processes. We find that the Belle result is about a factor of five above our limit, while other decays such as B0âD¯0Ï and B+âÏ+Ï, for which upper limits have been obtained by BaBar, could be observable with similar improvements in data. We argue that a significant enhancement of our predicted decay rates by rescattering is unlikely.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Michael Gronau, Jonathan L. Rosner,