Diagrammatic Analysis of Charmless Three-Body B Decays

Understand

We express the amplitudes for charmless three-body B decays in terms of diagrams.

• In addition, we show how to use Dalitz-plot analyses to obtain decay amplitudes which are symmetric or antisymmetric under the exchange of two of the final-state particles.
• When annihilation-type diagrams are neglected, as in two-body decays, many of the exact, purely isospin-based results are modified, leading to new tests of the standard model (SM).
• Some of the tests can be performed now, and we find that present data agree with the predictions of the SM.