Abstract
We present measurements of the branching fractions for the charmless two-body decays and , and a search for the decay . We include the effects of final-state radiation from the daughter mesons for the first time, and quote branching fractions for the inclusive processes , where and are pions or kaons. The maximum value of the sum of the energies of the undetected photons, , is mode-dependent. Using a data sample of approximately decays collected with the BABAR detector at the PEP-II asymmetric-energy collider at SLAC, we measure: , , , where the first uncertainty is statistical and the second is systematic. Theoretical calculations can be used to extrapolate from the above measurements the nonradiative branching fractions, . Using one such calculation, we find: , , . Meaningful comparison between theory and experiment, as well as combination of measurements from different experiments, can be performed only in terms of these nonradiative quantities.
- Received 2 August 2006
DOI:https://doi.org/10.1103/PhysRevD.75.012008
©2007 American Physical Society