Using a sample of integrated luminosity 1.68 fb-1 collected with the CLEO-II detector at the Cornell Electron Storage Ring, we measure the branching ratios for the dominant exclusive semileptonic decays D → Klν and D → K*lν, using charged and neutral D mesons. We also make a precise measurement of the vector form factor for the decay D0 → K-l+ν, using a sample of 2700 events.
Bibliographical noteFunding Information:
We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, the US Department of Energy, the Heisenberg Foundation, the SSC Fellowship program of TNRLC, and the A.P. Sloan Foundation.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics