"x" Particles and Their Radiative Interactions

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概要

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• On the basis of the broken SU(4) mass formula, nearly pure |cc^^-> configurations for ``χ'' particles can be obtained from the observed masses of `may-be SU(4) -multiplet' with J^<Pc> =2^<++>. 1^<++> and 0^<++>, and the masses of charmed partners D_x and F_x are predicted to be (2.3〜2.8) GeV and (2.5〜2.9) GeV, respectively. By assuming ψ, ψ' and ``χ'' to be pure |cc^^-> states, radiative decay widths for χ→ψ+γ are estimated in the context of the vector-meson-dominance model to be (226〜655) keV, <67 keV and (92〜244) keV for χ_T, χ_A and χ_S, respectively. Rather small value of Γ(χ_A→ψ+γ) would be a crucial test of the present approach. A possible unified description of ``χ'' Particles is also discussed in terms of a reducible Lorentz tensor χ_<μν>.

• 理論物理学刊行会の論文
• 1978-03-25

著者

• Umemura Isao

  Department Of Nuclear Engineering Faculty Of Engineering Kyoto University

• TESHIMA Tadayuki

  Department of Applied Physics, Chubu Institute of Technology

• Teshima Tadayuki

  Department Of Applied Physics Chubu Institute Of Technology

• Aizawa Nobuyuki

  Department Of Cardiology Shohnan Kamakura General Hospital

• Aizawa Nobuyuki

  Department Of Nuclesr Engineering Kyoto University

• UEMURA Isao

  Department of Nuclear Engineering Kyoto University

• AIZAWA Nobuyuki

  Department of Nuclear Engineering, Kyoto University

• AIZAWA Nobuyuki

  Department of Nuclesr Engineering, Kyoto University

• AIZAWA Naruhiko

  Research Center for Nuclear Physics, Osaka University

• UMEMURA Isao

  Department of Nuclear Engineering, Faculty of Engineering Kyoto University

• TESHIMA Tadayuki

  Depariment of Applied Physics, Chubu Institute of Technology

• UMEMURA Isao

  Department of Nuclesr Engineering, Kyoto University

• Aizawa Nobuyuki

  Department of Applied Mathematics,Osaka Women's University

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