ΞΝ and ΞΞ OBEP and Ξ^--Nucleus Bound States

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概要

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• One-boson-exchange potentials (OBEP) for ΞΝ and ΞΞ systems are derived in extension from the ΝΝ OBBP of Ueda, Riewe and Green in the framework of SU(3) invariance with effective nonet mesons in addition to the effective SU(3)-violating σ meson. The ΞΝ OBEP is applied to Ξ -nucleus bound states. The SU(3) parameters that were determined in fitting the ΛΝ system are used. Only the coupling constant g_<ΞΞσ> is newly adjustable. This is determined so as to reproduce the energies of Ξ^--^<12>C bound states. With the best value, we predict the scattering and bound states for ΞΝ and ΞΞ systems. In particular, we predict a Ξ-^<11>B bound state in agreement with the experimental results of the E885 collaboration.

• 理論物理学刊行会の論文
• 2001-04-25

著者

• UEDA Tamotsu

  Faculty of Science, Ehime University

• YAMAMOTO Yasuo

  Physics Section, Tsuru University

• Ueda Tamotsu

  Department Of Physics Ehime University

• Ueda Tamotsu

  Faculty Of Engineering Science Osaka University

• Ueda Tamotsu

  Faculty Of Science Ehime University

• Yamamoto Yasuo

  Physics Section Tsuru University

• YAMAGUCHI Masahiro

  Faculty of Science, Ehime University

• TOMINAGA Kouji

  Faculty of Science, Ehime University

• Tominaga K

  Faculty Of Science Ehime University:(present) Rcnp Osaka University

• YAMAMOTO Yuichi

  Department of Physics, School of Science, Tohyo Metropolitan University

• Yamaguchi M

  Department Of Physics Tohoku University

• Yamaguchi Masahiro

  Faculty Of Pharmaceutical Sciences Nagasaki University

• TOMINAGA Kouji

  Faculty of Science, Ehime University:(Present) RCNP, Osaka University

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