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

  • 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, C. R. Sun, P. N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, Rosemary Kennett, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thusalidas, W. M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. Besson, T. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, E. Nordberg, C. O'Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, H. Worden, M. Worris, A. J. Sadoff, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, S. Henderson, K. Kinoshita, F. Pipkin
  • Ohio State University
  • Purdue University
  • University of Rochester
  • SUNY Albany
  • Syracuse University
  • Vanderbilt University
  • Cornell University
  • Ithaca College
  • University of Florida
  • Harvard University
  • University of Kansas
  • University of Minnesota Twin Cities

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)3394-3401
Number of pages8
JournalPhysical Review D
Volume44
Issue number11
DOIs
StatePublished - 1991
Externally publishedYes

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