Properties of Chiral Scalar and Axial-Vector Mesons in Heavy-Light Quark Systems

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概要

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• We investigate the properties of new scalar X_B, X_D and axial-vector X_<B^*> X_<D^*> mesons, which were recently predicted, in the covariant meson-classification scheme, to exist as the partners of the ground-state pseudoscalar B, D and vector B^*, D^* mesons, respectively, realizing a linear representation of chiral symmetry for the light quark component in heavy-light quark meson systems. These mesons are considered as the states being different from the ordinary P wave mesons with j_q = 1/2 in HQET. The mass splittings between the respective chiral partners are shown to be equal, and the decay widths of the one pion emission of X_B, X_D, X_<B^*> and X_<D^*> are to have the same value, due to chiral and heavy quark symmetry.

• 理論物理学刊行会の論文
• 2001-08-25

著者

• ISHIDA Shin

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

  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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