Σ-Hypernuclear Responses in ^4He(In-Flight K^-,π) Spectra

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概要

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• Σ-hypernuclear productions by in-flight (K^-,π^-), (K~-,π^0) and (K^-,π^+) reactions on the 4^H target at p_K≃400-800 MeV/c are investigated theoretically in the DWIA framework by Green's function treatment with a complex nucleus-Σ potential derived from two-body ΣΝ interaction. The pion spectra are demonstrated systematically in order to clarify the structure of A=4 Σ-hypernuclei,ie,^4_ΣHe(J^π=0^+,T≃1/2), which is predicted theoretically as a nucleus-Σ bound state. The results show that the 4^H(in-flight K^-,π^-) reaction provides definitive information on the width and the structure of ^4_ΣHe. For a BNL-AGS proposal, the spectral shape at p_K=586 MeV/c (4°) is also discussed.

• 理論物理学刊行会の論文
• 1996-07-25

著者

• AKAISHI Yoshinori

  College of Science and Technology, Nihon University

• HARADA Toru

  Department of Pediatric Surgery, Nagoya University Graduate School of Medicine

• 原田 融

  Sapporo Gakuin Univ. Ebetsu Jpn

• Harada T

  Department Of Physics Waseda University

• AKAISHI Yoshinori

  Institute of Particle and Nuclear Studies, KEK

• AKAISHI Yoshinori

  High Energy Accelerator Research Organization (KEK)

• Yoshinori Akaishi

  College Of Science And Technology Nihon University

• Harada Toru

  Department Of Pathology Jikei University School Of Medicine

• 原田 融

  札幌学院大

• Akaishi Yoshinori

  Institute For Nuclear Study University Of Tokyo

• AKAISHI Yoshinori

  Institut fur Theoretische Physik der Universitat

• HARADA Toru

  Department of Social Information, Sapporo Gakuin University:Institute of Socio-Information and Communication Studies (ISICS) University of Tokyo

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