Abstract
We report the measurement of the branching fractions of the rare decays , , and in a sample of decays into pairs collected with the BABAR detector at the PEP-II asymmetric-energy storage ring. We present evidence for the decay and the vector-vector decays and , as well as the first measurement of the vector meson polarization in these decays. We also determine the ratios of the CKM-suppressed to CKM-favored amplitudes and in decays and , and comment on the prospects for measuring the observable .
- Received 29 March 2008
DOI:https://doi.org/10.1103/PhysRevD.78.032005
©2008 American Physical Society