Semileptonic Decays of B Meson into Charmed Higher Resonances in the Heavy Quark Effective Theory : Particles and Fields

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概要

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• Heavy quark effective theory is applied to semileptonic decays of B mesons into charmed higher resonances D_x, where subscript X denotes various spin-parity states of resonances. We calculate the differential decay rates and branching ratios of the decay B→D_<xlνι>. We find that the largest fraction of the semileptonic process B→D_<xlνι> other than D(1869) and D*(2010) is D*_2(1P state) whose value is 0.11%. It is also estimated that among the unidentified modes in the semileptonic decays of B meson other than D(1896) and D*(2010) the total contribution of exclusive higher resonance modes to the branching ratios is 0.3%. The results are compared to the recent experimental data and the other theoretical analyses. We discuss also the unidentified modes in the semileptonic decays of B meson which cannot be reduced to the exclusive higher resonance modes.

• 理論物理学刊行会の論文
• 1994-04-25

著者

• Suzuki Tsuyoshi

  Department of Cardiology, Saiseikai Kurihashi Hospital

• Ito Toshiaki

  Department of Childhood Education, Aichi Prefectural University

• MATSUDA Masahisa

  Department of Physics and Astronomy, Aichi University of Education

• SAWADA Shoji

  Department of Physics, Nagoya University

• Sawada S

  Department Of Physics Nagoya University

• Sawada Shoji

  Department Of Physics Hiroshima University

• Suzuki Tsuyoshi

  Department Of Cancer Immunotherapy Osaka University Graduate School Of Medicine

• Matsuda Masahisa

  Department Of Physics Aichi University Of Education

• Ito Toshiaki

  Department Of Cardiovascular Surgery Nagoya 1st Red Cross Hospital

• Ito Toshiaki

  Department Of Physics Nagoya University

• Suzuki Tsuyoshi

  Department Of Physics Nagoya University

• Ito Toshiaki

  Department Of Cardiovascular Surgery Japanese Red Cross Nagoya First Hospital

• SUZUKI Tsuyoshi

  Department of Physics, Nagoya University

• Suzuki Tsuyoshi

  Department of Applied Chemistry, Yamanashi University

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