Measurement of the ratio B(D0'e)B(D0K-e+e)

Using the CLEO detector at the Cornell Electron Storage Ring, we have performed a direct measurement of the ratio of D0 semileptonic branching fractions into vector and pseudoscalar final states. We find B(D0K*-e+e)B(D0K-e+e)=0.510.180.06, in agreement with the ratio derived by the E691 experiment which compares D+ and D0 final states. We also set an upper limit on the ratio B(D0*0-e+e)B(D0K*-e+e)<0.64 at 90% confidence level. © 1991 The American Physical Society.

About this item

Creator: G. Crawford; R. Fulton; K. K. Gan; T. Jensen; D. R., Johnson; H. Kagan; R. Kass; R. Malchow; F. Morrow; J. Whitmore; P. Wilson; D. Bortoletto; D. Brown; J. Dominick; R. L. McIlwain; D. H. Miller; M. Modesitt; C. R. Ng; S. F. Schaffner; E. I. Shibata; I. P.J. Shipsey; M. Battle; P. Kim; H. Kroha; K. Sparks; E. H. Thorndike; C. H. Wang; M. S. Alam; I. J. Kim; B. Nemati; V. Romero

Date: 1991-01-01

Bowdoin Department or Program: Physics and Astronomy

Access: Open access

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