Symmetry of New Particles
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概要
- 論文の詳細を見る
In this paper classification of new particles and the arrangement of the selection rules of their various interactions are attempted on the basis of a new symmetry scheme, SU(2)×SU(2)×SU(2)×SU(2). With this symmetry we define the quantum numbers for the predicted internal motions: isospin τ, hypercharge spin ζ, charm spin H and upsilon spin U, respectively. Our selection rules using these quantum numbers can accommodate the well-known rules of the GIM theory of charm particles. We also try to evaluate the branching ratios for several modes of the weak decay of charm mesons using our symmetry scheme. Unlike the results obtained by using the GIM theory, which often require complicated additional assumptions, our theory generates straightforward explanations of the branching ratios obtained in recent experiments. We apply our scheme of symmetry to the problems of the upsilon family, bottom mesons and excited baryons.
- 理論物理学刊行会の論文
- 1981-08-25
著者
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SATO Shuji
National Astronomical Observatory
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SATO Shinichi
Research Institute of Electrical Communication, Tohoku University
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NAKAZAWA Nobuya
Department of Physics,Kogakuin University
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Nakazawa Nobuya
The Physics Laboratories Harvard University
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Nakamura Seitaro
Department Of Physics Tokai University
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Nakamura Seitaro
Department Of Physics Facult Of Science University Of Tokyo
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Sato Shigeo
Department Of Cardiovascular Surgery Sakurabashi Watanabe Hospital
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Sato S
Department Of Physics Faculty Of Liberal Arts Shizuoka University
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NAKAZAWA Naohito
Department of Physics, Shimane University
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Sato Shigeo
Department Of Physics Rikkyo University
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NAKAZAWA Nobuya
The Physics Laboratories, Harvard University
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Nakamura Seitaro
Department of Physics, Faculty of Science, University of Tokyo : Department of Physics, College of Science and Engineering Nihon University
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Nakamura Shin-ichi
Department of Applied Physics, Faculty of Science Tokyo Institute of Technology
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Nakamura Seitaro
Department of Applied Physics, Faculty of Science Tokyo Institute of Technology
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