Observation of the exclusive decay B→evD* and search for B→evπ0

D. Antreasyan, H. W. Bartels, C. Bieler, J. K. Bienlein, A. Bizzeti, E. D. Bloom, K. Brockmüller, A. Cartacci, M. Cavalli-Sforza, R. Clare, A. Compagnucci, G. Conforto, S. Cooper, D. Coyne, K. Fairfield, G. Folger, A. Fridman, D. Gelphman, G. Glaser, G. GodfreyK. Graaf, F. H. Heimlich, F. H. Heinsius, R. Hofstadter, J. Irion, Z. Jakubowski, H. Janssen, K. Karch, S. Keh, T. Kiel, H. Kilian, I. Kirkbride, M. Kobel, W. Koch, A. C. König, K. Königsmann, S. Krüger, G. Landi, S. Leffler, R. Lekebusch, T. Lesiak, A. M. Litke, S. Lowe, B. Lurz, H. Marsiske, W. Maschmann, P. McBride, W. J. Metzger, H. Meyer, B. Monteleoni, B. Muryn, B. Niczyporuk, G. Nowak, C. Peck, P. G. Pelfer, F. C. Porter, M. Reidenbach, M. Scheer, P. Schmitt, J. Schotanus, J. Schütte, A. Schwarz, D. Sievers, T. Skwarnicki, V. Stock, K. Strauch, U. Strohbusch, J. Tompkins, B. van Uitert, R. T. Van de Walle, A. Voigt, U. Volland, K. Wachs, K. Wacker, W. Walk, H. Wegener, D. A. Williams

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The Crystal Ball detector at the e+e- storage ring DORIS II has been used to analyze exclusive semileptonic decays of B mesons produced at γ(4 S) energies. The decay B→evD* has been observed with a branching ratio of (7.0±1.8±1.4)% using the π°D decay mode of the D*. In addition we have searched for the exclusive semileptonic decay B±→e±0. We find an upper limit on B±→e±0 of 0.22% at the 90% CL.

Original languageEnglish (US)
Pages (from-to)553-559
Number of pages7
JournalZeitschrift für Physik C Particles and Fields
Volume48
Issue number4
DOIs
StatePublished - Dec 1990

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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