Measurements of the Absolute Branching Ratios for the Dominant KL   Decays, the KL Lifetime, and Vus with the KLOE Detector
  From a sample of about 10^9 Phi mesons produced at DAFNE, we have selected KL mesons tagged by observing KS->pi+pi- decays. We present results on the major KL branching ratios, including those of the semileptonic decays needed for the determination of Vus. These branching ratio measurements are fully inclusive with respect to final-state radiation. The KL lifetime has also been measured. 
KLOE Collaboration