Abstract
We prove a factorization theorem in QCD for the color suppressed decays and where M is a light meson. Both the color-suppressed and W-exchange or annihilation amplitudes contribute at lowest order in where so no power suppression of annihilation contributions is found. A new mechanism is given for generating nonperturbative strong phases in the factorization framework. Model-independent predictions that follow from our results include the equality of the and rates and the equality of nonperturbative strong phases between isospin amplitudes, Relations between amplitudes and phases for are also derived. These results do not follow from large factorization with heavy quark symmetry.
- Received 11 July 2003
DOI:https://doi.org/10.1103/PhysRevD.68.114009
©2003 American Physical Society