Weak Radiative Decay Λ_b → Λ γ and Quark-Confined Effects in the Covariant Oscillator Quark Model

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概要

• 論文の詳細を見る

• Motivated by the observation of the decay B → K^* γ by the CLEO collaboration, we have systematically analyzed the weak radiative decay Λ_b → Λ γ, evaluating the confined effects of quarks in the covariant oscillator quark model. This decay process receives both short distance (electromagnetic penguins at the one loop level) and long distance contributions in the quark level. The long distance contributions are analyzed using the vector meson dominance (VMD) method. The estimated branching ratio is found to be 0.23×10^<-5>.

• 理論物理学刊行会の論文
• 1999-09-25

著者

• Giri Anjan

  Department Of Physics Panjab University

• ISHIDA Shin

  Atomic Energy Research Institute, College of Science and Technology, Nihon University

• ISHIDA Muneyuki

  Department of Physics, Tokyo Institute of Technology

• MOHANTA Rukmani

  Department of Physics, Panjab University

• KHANNA Mohinder

  Department of Physics, Panjab University

• Mohanta Rukmani

  Department Of Physics Panjab University

• Khanna Mohinder

  Department Of Physics Panjab University

• Ishida Muneyuki

  Department Of Physics Tokyo Institute Of Technology

• Ishida Muneyuki

  Department Of Physics School Of Science And Engineering Meisei University

• ISHIDA Shin

  Research Institute of Science and Technology, College of Science and Technology, Nihon University

• Ishida Shin

  Atomic Energy Research Institute College Of Science And Technolgy Nihon University

• Ishida Shin

  Atomic Energy Research Institute College Of Science And Technology

• GIRI Anjan

  Department of Physics, Panjab University

• ISHIDA Shin

  Department of Physics and Atomic Energy Research Institute College of Science and Technology, Nihon University

• ISHIDA Shin

  College of Science & Technology, Nihon University Tokyo

• ISHIDA Shin

  Atomic Energy Research Institute, College of Science and Technology Nihon University

• ISHIDA Shin

  Atomic Energy Research Institute, College of Scinence and Technology Nihon University

• ISHIDA Muneyuki

  Department of Physics,University of Tokyo

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