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, Tomasz 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 journalArticle

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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
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Antreasyan, D., Bartels, H. W., Bieler, C., Bienlein, J. K., Bizzeti, A., Bloom, E. D., Brockmüller, K., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Coyne, D., Fairfield, K., Folger, G., Fridman, A., Gelphman, D., Glaser, G., ... Williams, D. A. (1990). Observation of the exclusive decay B→evD* and search for B→evπ0. Zeitschrift für Physik C Particles and Fields, 48(4), 553-559. https://doi.org/10.1007/BF01614688