Where Is the Σ_b? : Progress Letters

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概要

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• The masses of s-wave bottom baryons are discussed in a semirelativistic quark model, on the basis of a quark-distance relation. We stress that the Σ_b is heavier than Ξ'_b(b[su], b[sd]) containing the antisymmetric su(or sd) subsystem. We conclude that the two candidates for Λ_b with very different masses are different states; Basile et al.'s result 5425^<+175>_<-75> MeV is Λ_b(b[du]), but Arenton et al.'s result 〜5750 MeV is Ξ'^<0>_b(b[su]).

• 理論物理学刊行会の論文
• 1992-03-25

著者

• Minamikawa T

  Department Of Physics Tokyo University Of Mercantile Marine

• Minamikawa Toshiyuki

  Department Of Physics Tokyo University Of Mercantile Marine

• ITOH Chiaki

  Department of Physics, Meiji-Gakuin University

• MIURA Kimio

  Department of Physics, Nippon Ika University

• WATANABE Tsunetoshi

  Department of Physics, Asia University

• Itoh Chiaki

  Department Of Physics Meiji-gakuin University

• Miura Kimio

  Department Of Physics Nippon Ika University

• Watanabe Tsunetoshi

  Department Of Physics Asia University

• Minamikawa Toshiyuki

  Department Of Physics Tokyo University Of Education

• ITOH Chiaki

  Department of Physics, Meiji-Gakuen University

• MINAMIKAWA Toshiyuki

  Department of Physics, Tokyo University of Mercantile Marine

• Miura Kimio

  Department of Mechanical Systems,Faculty of Computer Science and Systems Engineerig,Kyushu Institute of Technology

関連論文

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• Where Is the Σ_b? : Progress Letters
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• Electromagnetic mass difference and the Structure of Baryon and Boson
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• Discrepancies between Additive Quark Model and Experiments of Baryon Magnetic Moments
• Proper Time Formulation with General Vertices
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• Weak Gamma Decays of Hyperons
• η_b, B_c and a Hybrid Potential(Particles and Fields)
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• Pole Approximation and Unitary Symmetry in Nonleptonic Hyperon Decays
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