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A study of B0 → D*+-vandB0B0 mixing using partial D*+ reconstruction

  • H. Albrecht
  • , H. Ehrlichmann
  • , T. Hamacher
  • , R. P. Hofmann
  • , T. Kirchhoff
  • , A. Nau
  • , S. Nowak
  • , H. Schröder
  • , H. D. Schulz
  • , M. Walter
  • , R. Wurth
  • , C. Hast
  • , H. Kapitza
  • , H. Kolanoski
  • , A. Kosche
  • , A. Lange
  • , A. Lindner
  • , R. Mankel
  • , M. Schieber
  • , T. Siegmund
  • B. Spaan, H. Thurn, D. Töpfer, D. Wegener, P. Eckstein, R. Waldi, M. Paulini, K. Reim, H. Wegener, R. Eckmann, R. Mundt, T. Oest, R. Reiner, W. Schmidt-Parzefall, J. Stiewe, S. Werner, K. Ehret, W. Hofmann, A. Hüpper, S. Khan, K. T. Knöpfle, M. Seeger, J. Spengler, D. I. Britton, C. E.K. Charlesworth, K. W. Edwards, E. R.F. Hyatt, P. Krieger, D. B. MacFarlane, P. M. Patel, J. D. Prentice, P. R.B. Saull, K. Tzamariudaki, R. G. Van de Water, T. S. Yoon, D. Reßing, M. Schmidtler, M. Schnieder, K. R. Schubert, S. Weseler, G. Kernel, P. Križan, E. Križnič, T. Podobnik, T. Živko, V. Balagura, I. Belyaev, S. Chechelnitsky, M. Danilov, A. Droutskoy, Yu Gershtein, A. Golutvin, I. Korolko, G. Kostina, D. Litvintsev, V. Lubimov, P. Pakhlov, S. Semenov, A. Snizhko, I. Tichomirov, Yu Zaitsev
  • c/o DESY
  • University of Dortmund
  • Technical University Dresden
  • Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen
  • Universität Hamburg
  • University of Heidelberg
  • Max-Planck-Institut für Kernphysik
  • Institute of Particle Physics
  • Universität Karlsruhe/Forschungszentrum Karlsruhe
  • University of Ljubljana
  • Institute for Theoretical and Experimental Physics

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

74 Citations (Scopus)

Résumé

Using the ARGUS detector at the e+e- storage ring DORIS II at DESY, we have studied the decay B0 → D*+- v by exploiting a partial D*+ reconstruction technique. The branching ratio for this mode was thereby determined to be (4.5 ± 0.3 ± 0.4)%. Using the corresponding sample of tagged B0 mesons, we measured the B0B0 mixing parameter to be rd = 0.194 ± 0.062 ± 0.054, a result only weakly dependent upon the ratio of semileptonic widths for and production rates of B0 and B+ mesons. We have also determined the branching ratio Br (B0 → X ℓ-v to be (9.3 ± 1.1 ± 1.5)%. By comparing the results for full and partial D*+ reconstuction we found the absolute branching ratios for D0 → K-π+ and D0 → K- π+π+π- to be (4.5 ± 0.6 ± 0.4)% and (7.9 ± 1.5 ± 0.9)%, respectively.

langue originaleAnglais
Pages (de - à)249-254
Nombre de pages6
journalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume324
Numéro de publication2
Les DOIs
étatPublié - 31 mars 1994
Modification externeOui

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