Relation between Scattering and Production Amplitudes : Concerning σ Particle in ππ System

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概要

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• In a series of previous papers the present authors and collaborators have shown strong evidence for existence of the long-sought σ particle by analyzing the ππ-scattering and ππ-production processes, applying, respectively, the IA method and the VMW method. In this paper we examine the relation between the scattering amplitude T and the production amplitude F from the viewpoint of unitarity and the final state interaction (FSI) theorem by using a simple field theoretical model. As a result it is shown that the amplitudes in the physical state representation are directly represented through the Breit-Wigner amplitudes of the relevant resonances, and the respective forms of T and F coincide with those in the IA and VMW methods, justifying our methods of analyses.

• 理論物理学刊行会の論文
• 1998-06-25

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 Taku

  KEK

• Ishida Muneyuki

  Department Of Physics School Of Science And Engineering Meisei University

• Ishida S

  Research Institute Of Science And Technology College Of Science And Technology Nihon University

• ISHIDA Shin

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

• Ishida M

  Tokyo Inst. Technol. Tokyo Jpn

• ISHIDA Taku

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

• ISHIDA Taku

  National Laboratory for High Energy Physics(KEK)

• ISHIDA Taku

  Department of Engineering, Miyazaki 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

• ISHIDA Taku

  Insititute for Cosmic Ray Research, University of Tokyo:National Laboratory for High Energy Physics (KEK)

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