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Contemporary Topics in Medium Energy Physics pp 193–202Cite as

Spectator and Non-Spectator Models in the B Meson Systems

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Abstract

If the charged and neutral B mesons have the same lifetimes, as predicted by the spectator model, the semileptonic branching ratio of B → evX will not satisfy the experimental results. After the contribution from the non-spectator (W-exchange) model is included, the semileptonic branching ratio of B mesons will be within the experimental region, and the sizable lifetime difference between B 0 d and B ± mesons is predicted.

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Author information

Authors and Affiliations

  1. Physics Department, National Taiwan Normal University, Taipei, Taiwan 117 R.O.C.

    Herng Yao

Authors
  1. Herng Yao
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Editor information

Editors and Affiliations

  1. Ruhr-Universität Bochum, Bochum, Germany

    Klaus Goeke

  2. National Taiwan University, Taipei, Taiwan

    W-Y. Pauchy Hwang

  3. Forschungszentrum Jülich and Universität Bonn, Bonn, Germany

    Josef Speth

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© 1994 Springer Science+Business Media New York

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Yao, H. (1994). Spectator and Non-Spectator Models in the B Meson Systems. In: Goeke, K., Hwang, WY.P., Speth, J. (eds) Contemporary Topics in Medium Energy Physics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9835-7_15

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  • DOI: https://doi.org/10.1007/978-1-4757-9835-7_15

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-9837-1

  • Online ISBN: 978-1-4757-9835-7

  • eBook Packages: Springer Book Archive

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